src: Make the EXAMPLES a README for github
src: f5510: blink: Clean up example

This was abused outside of its purpose over time -- clean that up so it
is a more meaningful example.
src: f5510: drv8825_test: Clean up example
src: f5510: int_sw_test: Clean up example
src: f5510: Remove non-applicable examples

Need to replace the rotary encoder example with a meaningful one, but
the ISR dispatcher has since been dispatched due to performance issues.
src: f5510: spi_test: Cleanup of example
src: f5510: tlc_test: Example cleanup
src: g2553: lp: clock_test: Clean up example
src: g2553: lp: Delete old examples

Need to replace these in the future, but delete them for now.
src: g2553: lp: ss_count: Example cleanup
src: g2553: spi_counter: Delete legacy stuff