First batch of initial commits
Second batch of initial commits.
Mostly examples
Ignore some files produced by build/compile
Simplify code for output framing.
Move gaps down one level.
Add temporary time constants to make compile.
Change means of ignoring build results.
Ignore whole directories from top level.
Later may add in some build results, once I learn what is needed.
Ready to test in simulator.
End of day.
Simulated timing for frame0 is thought to exactly follow symbolic constants.
However, the constants don't have real values yet.
Add users guid for pickit3.
Lunch break

Add nice header at top of file.

Stop using "GPIO", it has special meaning in pic world that could be confusing.
Instead use Port or Bits.  Meaning should be obvious from context.

Add support for using timer0 to allow simultaneous input and time
measuring.

Change delays to use _delay instead of _delay_us.  It allows cycle accurate
delay.  Allow specification of delay in floating point literal in microseconds,
rather than in cycles.  Provde macro m2i to convert from microseconds
to instruction cycles.

Use more symbolic derivation of clock timing constants.  Fewer places to change.
Put all values that need to be consistent, close together.

Fix swapping of hi/lo data nibbles.

Hoist frame time delays outside of called function to each call site.
Need the additional degrees of freedom to adjust delay for each call site
environment.
Ignore all "*.obj" type file, not just the one "l.obj".
Update log and ttd list
Merge branch 'master' of github.com:bertdouglas/digital-interface-clock-and-data

Join existing local repo with new remote repo on github.
Merging only "readme.md".