Add a minimum requirements HAL test
Add a minimum requirements HAL test

Add a test to ensure that devices have at least 2K free ram
and 2K free heap. This test should be the first test that fails
due to running out of ram or heap.

kjbracey-arm/mbed,kjbracey-arm/mbed,andcor02/mbed-os,mbedmicro/mbed,andcor02/mbed-os,c1728p9/mbed-os,andcor02/mbed-os,c1728p9/mbed-os,c1728p9/mbed-os,kjbracey-arm/mbed,andcor02/mbed-os,c1728p9/mbed-os,c1728p9/mbed-os,mbedmicro/mbed,andcor02/mbed-os,c1728p9/mbed-os,andcor02/mbed-os,mbedmicro/mbed,kjbracey-arm/mbed,mbedmicro/mbed,mbedmicro/mbed