* Add initial Elro DB286A support
* Correct line removal
* Declare variables at beginning of block
* Use preprocessor define for constants
* Change 'id' field name to 'code'
* Move check for bitrow length below variable declarations
* Export compare_rows and count_repeats functions
* Use PWM_RAW with appropriate limits to separate messages
Makes it possible to use bitrows directly to check signal,
also to generate hex code instead of binary string
* Correct stray line removal
* Correct file header, add copyright notice
* Move check in front of code generation
Implemented minimum and maximum gap times in addition to current
gap/pulse ratio. Changed values to be independent of sample rate.
Also made bitbuffer less noisy for decoders with small .long_limit
Tested with:
rtl_433_tests/tests/ambient_weather/01/f007th.data
rtl_433_tests/tests/cardin/01/S466-TX2_01.data
rtl_433_tests/tests/cardin/01/S466-TX2_02.data
rtl_433_tests/tests/fineoffset/01/gfile001.data
rtl_433_tests/tests/lacrosse/01/gfile001.data
rtl_433_tests/tests/lacrosse/01/gfile002.data
rtl_433_tests/tests/lacrosse/01/gfile006.data
rtl_433_tests/tests/oregon_scientific/01/BTHGN129.data
rtl_433_tests/tests/oregon_scientific/01/BTHR968.data
rtl_433_tests/tests/oregon_scientific/02/gfile003.data
rtl_433_tests/tests/prologue/01/gfile001.data
Made a prototype for a PWM pulse demodulator. Broke out bit_packet
functions into own file to avoid circular references and for clean up.
Compiles cleanly, but untested.
