Revert "Temporarily remove fungible assets code (aptos-labs#7827)" (a…

…ptos-labs#7829)

aptos-move/framework/aptos-framework/doc/overview.md

@@ -28,6 +28,7 @@ This is the reference documentation of the Aptos framework.
 -  [`0x1::delegation_pool`](delegation_pool.md#0x1_delegation_pool)
 -  [`0x1::event`](event.md#0x1_event)
 -  [`0x1::execution_config`](execution_config.md#0x1_execution_config)
+-  [`0x1::fungible_asset`](fungible_asset.md#0x1_fungible_asset)
 -  [`0x1::gas_schedule`](gas_schedule.md#0x1_gas_schedule)
 -  [`0x1::genesis`](genesis.md#0x1_genesis)
 -  [`0x1::governance_proposal`](governance_proposal.md#0x1_governance_proposal)
@@ -36,6 +37,7 @@ This is the reference documentation of the Aptos framework.
 -  [`0x1::multisig_account`](multisig_account.md#0x1_multisig_account)
 -  [`0x1::object`](object.md#0x1_object)
 -  [`0x1::optional_aggregator`](optional_aggregator.md#0x1_optional_aggregator)
+-  [`0x1::primary_fungible_store`](primary_fungible_store.md#0x1_primary_fungible_store)
 -  [`0x1::reconfiguration`](reconfiguration.md#0x1_reconfiguration)
 -  [`0x1::resource_account`](resource_account.md#0x1_resource_account)
 -  [`0x1::stake`](stake.md#0x1_stake)

aptos-move/framework/aptos-framework/sources/aggregator/optional_aggregator.move

@@ -8,6 +8,7 @@ module aptos_framework::optional_aggregator {
     use aptos_framework::aggregator::{Self, Aggregator};
 
     friend aptos_framework::coin;
+    friend aptos_framework::fungible_asset;
 
     /// The value of aggregator underflows (goes below zero). Raised by native code.
     const EAGGREGATOR_OVERFLOW: u64 = 1;