Massdrop Carina prerelease version 0.9

Drop FW Fixes for massdrop alt, ctrl, rocketeer & shift keyboards (Ma…

…ssdrop#8)

- In config.h of each, added '#define BOOTKEY_HOLD_MS  2000' to define hold time required to active Boot key (was 500ms hardcode)
- Updated all active keymap.c files to use this define
- Added line in quantum.c in MAGIC_TOGGLE_NKRO case to clear_keyboard() before toggling nkro state to fix stuck key issues when switching NKRO.

Mask off keycode/layer/mod where possible in LT(), MT(), etc. (qmk#3430)

* Mask off keycode/layer/mod where possible in LT(), MT(), etc.

* Don't need these parentheses

* Put back parentheses for order of operations

STM32 EEPROM Emulation (qmk#3741)

* STM32 EEPROM Emulation

- Added EEPROM emulation libaries from libmaple and Arduino_STM32. https://github.com/rogerclarkmelbourne/Arduino_STM32 and https://github.com/leaflabs/libmaple.
- Renamed teensy EEPROM library and added conditional selection of library.
- Remapped EEPROM memory map for 16 byte blocks (as is with STM32f3xx MCUs).
- Added EEPROM initialization in main.c of Chibios.
- Added EEPROM format to clear the emulated pages when EEPROM is marked as invalid.

* Fixed ifdef

Massdrop keyboard support (qmk#3780)

* Massdrop SAMD51

Massdrop SAMD51 keyboards initial project upload

* Removing relocated files

Removing files that were relocated and not deleted from previous location

* LED queue fix and cleaning

Cleaned some white space or comments.
Fix for LED I2C command queue.
Cleaned up interrupts.
Added debug function for printing numbers to scope through m15 line.

* Factory programmed serial usage

Ability to use factory programmed serial in hub and keyboard usb descriptors

* USB serial number and bugfix

Added support for factory programmed serial and usage.
Incorporated bootloader's conditional compiling to align project closer.
Fixed issue when USB device attempted to send before enabled.
General white space and comment cleanup.

* Project cleanup

Cleaned up project in terms of white space, commented code, and unecessary files.
NKRO keyboard is now using correct setreport although KBD was fine to use.
Fixed broken linkage to __xprintf for serial debug statements.

* Fix for extra keys

Fixed possible USB hang on extra keys report set missing

* I2C cleanup

I2C cleanup and file renames necessary for master branch merge

* Boot tracing and clocks cleanup

Added optional boot debug trace mode through debug LED codes.
General clock code cleanup.

* Relocate ARM/Atmel headers

Moved ARM/Atmel header folder from drivers to lib and made necessary makefile changes.

* Pull request changes

Pull request changes

* Keymap and compile flag fix

Keymap fix for momentary layer.
Potential compile flag fix for Travis CI failure.

* va_list include fix

Fix for va_list compile failure

* Include file case fixes

Fixes for include files with incorrect case

* ctrl and alt67 keyboard readme

Added ctrl and alt67 keyboard readme files

Updated templates for use by new_project.sh (qmk#3783)

* template.h file cleanup

Reformatted the pre-macro comments as block comments.

Updated the ps2avrgb template comment to match the avr template's comment, which was more informative.

Deleted the line about the macro representing the Planck MIT layout, because the macro doesn't represent that layout anymore.

* base template keymap.c refactor

Deleted the deprecated TMK macro functions.

Defined two custom keycodes for use as macros by process_record_user.

process_record_user is now after the keymap and before matrix_init_user, where the deleted TMK functions were.

* Removed an extra " from macro command per @drashna

* Added BOOTLOADER rule to avr/rules.mk per @drashna

* Updated Bootloader sections per @drashna

* Updated links to docs at the bottom of both avr and ps2avrgb template readme.md files

Corrected the links to the Build Environment Setup and the Make Instructions docs.

Added direct link to the QMK Complete Newbs Guide.

Fixed bootloader target

Fixed matching grep matches (for PRODUCT in particular)
Fixed " Bootloader" concatenation for WSL (windows line-endings)

ISSI31FL3733 driver (qmk#3679)

* ISSI31FL3733 driver

- Addapted IS31 driver for the above driver

* fix my branch

* ISSI31FL3733 driver

- Inclusion of above ISSI led driver

* IS31fl3733 driver

- Added correct function for control registers

* Finalized support for ISSI31fl3733 led driver

- Finalized and tested driver.
- Modified i2c_master for arm due to declaration mistake.
- Fixed spaces/tabs in quantum.h file.
- Fixed spaces/tabs in common_features.mk file.
- Removed unnecessary includes from rgb_matrix.c file.
- Added local definitions for MIN and MAX macros in rgb_matrix.c file.
- Adjusted chevron effect.
- Added necessary define (RGB_3733_MATRIX_ENABLE) for makefile.
- Added necessary C define (ISSI3733) to aid with inclusion of the correct header file.
- Added documentation for the new driver.

* Driver structure update

- Changed rule includes to be more condensed (RGB_MATRIX_ENABLE = IS31FL3731) and (RGB_MATRIX_ENABLE = IS31FL3733)
- Updated documentation
- Reverted to the use of differently named functions for each driver and selecting the needed ones within rgb_matrix.c

* ISSI Drivers refractoring

- Moved issi drivers in a dedicated folder
- Updated documentation

* I2C library fix

I released the special pins incorrectly before. It is now fixed.

Keyboard: add Wavelet (qmk#3739)

* Add Wavelet keyboard

* Fix build error for keyboards w/o Planck MIT layout

* Add swap hands support

Tidy up keycode.h (qmk#3666)

* Tidy up keycode.h

* Fix spacing here

* Add back this comma