Rethink STM32 I2C v2 HAL (#78) ...

* Initial attempt at rethinking the STM32 I2C v2 HAL.  Makes single-byte work properly and adds a new 'state' variable to track what the hardware is doing.

* Fix some initial test failures

* Fix incorrect logic

* Fix more incorrect logic

* Tabs to spaces

* Fix repeated starts with single-byte API

* Fix race condition causing stop() after nacked address to sometimes break things

* Fix missed i2c structs that should have been removed

* Fix doing a repeated start from single-byte to transaction API causing I2C peripheral to lock up

* Fix xferOperation being set wrong for repeated starts, causing the peripheral to hang

* Fix race condition with repeated start after single-byte operation

* Fix compilation for targets that use I2C IP v1

* Fix initialization of XferOperation for API v1, optimize stop()

* Remove unneeded line

* Add docs for I2C events

Fix assertion failures missed from test log when multiple tests fail

Only support GCC ARM compiler, but reap the benefits of static libraries instead of objects

- Split mbed-core and mbed-rtos into -sources and -flags targets ...

- Fix some logic errors in top level cmakelists related to building greentea tests
- Fix mbed_create_distro() for OBJECT libraries

greentea: Add missing license header ...

Add missing license header to greentea_metrics.h

Deprecate the Greentea metrics API ...

Add the deprecated macro to where the Greentea metrics API is declared.

Fixes #14790

CMake: greentea: Fix io issue with greentea-client ...

The stdio implementation of the standalone greentea-client wasn't
streaming "KiVi protocol" messages through the serial IO. Separate out
the existing implementation for greentea-client that uses
mbed_retarget.h's `read` and `write` functions so greentea tests
continue to work with the standalone client.

The IO fixture is shared between the "legacy" embedded greentea-client
and the newer standalone client.

Use standalone greentea-client ...

For CMake or Mbed CLI 2, use the standalone greentea-client.

Replace USBTX/RX

Use length constant instead of literal ...

Co-authored-by: Ladislas de Toldi <ladislas@detoldi.me>

Use named namespace & improvements

Remove const suffix

Replace macros

Rename FLASH_SECTOR_SIZE macro to avoid conflicts

CMake: Create mbed-greentea library

Merge pull request #13085 from pea-pod/remove-deprecated-mbed-assert ...

Change MBED_STATIC_ASSERTs version for built-in

Merge pull request #13768 from jeromecoutant/PR_FPGA_PRINT ...

COMPONENT_FPGA_CI_TEST_SHIELD: better debug print

CMake: Rename CMake targets ...

* mbed-os renamed mbed-core
* mbed-os-<COMPONENT> renamed mbed-<COMPONENT>

CMake: Componentize Mbed OS into multiple CMake targets (#13732) ...

Aside from the core mbed-os CMake target, a number of targets have been created so they can optionally be included by application executables that require them using `target_link_libraries()`.

Co-authored-by: Martin Kojtal <martin.kojtal@arm.com>
Co-authored-by: Rajkumar Kanagaraj <rajkumar.kanagaraj@arm.com>

CMake: Fix build failure due to mbed-trace, mbed-client-randlib, and nanostack dir changes

CMake: Fix build failure due to PSA dir move

CMake: Fix failures due to device_key and storage dirs move

CMake: Fix build failure due to lora, cryptocell, and nfc dirs move

CMake: Fix failure due to MbedTLS rdir relocation

CMake: Fix breakage due to BLE dir move

CMake: Fix build failure due to nanostack dir move

CMake: Fix build failure due to drivers and lwipstack dirs move

CMake: Fix build failure due to nanostack drivers move

CMake: Fix failure due to events and netsocket dirs changes

CMake: Fix build due to system_storage and netsocket dir move in master