platform was misnomer for tests really organised around implementation. See agnostic...

diff --git a/python/testing/platform/__init__.py b/python/testing/implementation/__init__.py
similarity index 100%
rename from python/testing/platform/__init__.py
rename to python/testing/implementation/__init__.py

diff --git a/python/testing/platform/all/__init__.py b/python/testing/implementation/all/__init__.py
similarity index 100%
rename from python/testing/platform/all/__init__.py
rename to python/testing/implementation/all/__init__.py

diff --git a/python/testing/platform/all/digitalio.py b/python/testing/implementation/all/digitalio.py
similarity index 100%
rename from python/testing/platform/all/digitalio.py
rename to python/testing/implementation/all/digitalio.py

diff --git a/python/testing/platform/all/microcontroller.py b/python/testing/implementation/all/microcontroller.py
similarity index 100%
rename from python/testing/platform/all/microcontroller.py
rename to python/testing/implementation/all/microcontroller.py

diff --git a/python/testing/platform/circuitpython/__init__.py b/python/testing/implementation/circuitpython/__init__.py
similarity index 100%
rename from python/testing/platform/circuitpython/__init__.py
rename to python/testing/implementation/circuitpython/__init__.py

diff --git a/python/testing/platform/circuitpython/digitalio.py b/python/testing/implementation/circuitpython/digitalio.py
similarity index 100%
rename from python/testing/platform/circuitpython/digitalio.py
rename to python/testing/implementation/circuitpython/digitalio.py

diff --git a/python/testing/platform/mcp/__init__.py b/python/testing/implementation/mcp/__init__.py
similarity index 100%
rename from python/testing/platform/mcp/__init__.py
rename to python/testing/implementation/mcp/__init__.py

diff --git a/python/testing/platform/mcp/digitalio.py b/python/testing/implementation/mcp/digitalio.py
similarity index 100%
rename from python/testing/platform/mcp/digitalio.py
rename to python/testing/implementation/mcp/digitalio.py