configs/mikroe-stm32f4:  Add new configurations plus support for the MIO283QT2 display from Ken Pettit

Rearchitecting of some MTD, partition, SMART interfaces, and FLASH drivers to:  Better use the byte write capbility when available and to use smaller erase sectors for the erase sector size when available).

Various Kconfig files still have references to CONFIG_ variables.  Some in harmless comments, some in config definionts which is not harmless.  All removed

Fix comments, references to the old SVN, and links to the old SVN.  Replace with equivalent GIT info