Bump version to 1.12.0

Only set PCL_ALL_IN_ONE_INSTALLER on Windows (PointCloudLibrary#4821)

On Linux PCL_ROOT is set to /usr and so we are testing for /usr/3rdParty
which could exist independently of PCL.

Reported in https://bugs.launchpad.net/ubuntu/+source/pcl/+bug/1928819

Merge pull request PointCloudLibrary#4323 from kunaltyagi/1.11.1

Release 1.11.1

Merge pull request PointCloudLibrary#4321 from kunaltyagi/release-name

Better name in archive created by CI

Merge pull request PointCloudLibrary#4073 from kunaltyagi/release_2

Bump version for release (PointCloudLibrary#4075)

* Bump version for release

* Adding changelog

* Fixing duplication in API/ABI

Merge pull request PointCloudLibrary#3764 from taketwo/release-1-10-1

Release 1.10.1

1.10.0 Release (PointCloudLibrary#3552)

1.10.0 Release

PCL 1.9.1 Release

Merge pull request PointCloudLibrary#2489 from SergioRAgostinho/bump-…

…version-1.9.0

Bump version to 1.9.0