basically rewrite myhtml_worker from scratch to use EI

closes #1 (closed)

added 2 commits

• 35087636 - restore compatibility with OTP 21 and earlier
• 34200411 - mix: use OTP22_DEF knob

Compare with previous version

Has been running on my instance for a day now with no increased ram/cpu usage compared to the erl_interface version. FastSanitize benchmarks also show about 1ms reduction on document-medium and fragment-large. LGTM

added 1 commit

• fa87b8f8 - worker: set MyHTML_TREE_PARSE_FLAGS_WITHOUT_DOCTYPE_IN_TREE

Compare with previous version

mentioned in commit bc5cd1df

merged