Move registry to interp and add support for functions and filesystems.
This will be used later for allow formats to add own functions and fq code.
Add gojqextra function helpers to have more comfortable API to add functions.
Takes care of argument type casting and JQValue:s and some more things.
Refactor interp package to use new function helper and registry. Probably
fixes a bunch of JQValue bugs and other type errors.
Refactor out some mpeg nal things to mpeg format.
Refactor interp jq code into display.q and init.jq.
Remove undocumented aes_ctr funciton, was a test. Hopefully will add more crypto things laster.
Rename s/interface{}/any/g
Preparation for using generics in decode API and native jq funcations etc
Remove some unused linter ignores as linter has been fixed
There is also toradix($base; $table)/fromradix($base; $table) for custom symbols and bases.
Add radix tests
Part of cleaning up all convert/tranformation functions into to/from*.
Remove number_to_bytes as with better binary support it can be written as:
1234 | tobytes | [.[range(.size)]] and soon as 1234 | tobytes | explode
