Split code into features

[GopherJ]

No description provided.

[codecov]

Codecov Report

Merging #137 into master will decrease coverage by 4.04%.
The diff coverage is 61.95%.

@@            Coverage Diff             @@
##           master     #137      +/-   ##
==========================================
- Coverage   85.75%   81.71%   -4.05%     
==========================================
  Files          19       20       +1     
  Lines        3025     3111      +86     
==========================================
- Hits         2594     2542      -52     
- Misses        431      569     +138     

Impacted Files	Coverage Δ
src/cache/default_cache.rs	0.00% <0.00%> (-93.34%)	⬇️
src/cached_enforcer.rs	0.00% <0.00%> (-5.69%)	⬇️
src/emitter.rs	0.00% <0.00%> (-66.67%)	⬇️
src/error.rs	100.00% <ø> (ø)
src/logger/default_logger.rs	0.00% <0.00%> (ø)
src/model/function_map.rs	94.64% <0.00%> (-2.20%)	⬇️
src/util.rs	97.77% <0.00%> (ø)
src/internal_api.rs	31.00% <16.32%> (-16.06%)	⬇️
src/convert.rs	40.00% <33.33%> (-10.00%)	⬇️
src/enforcer.rs	85.38% <74.10%> (-5.24%)	⬇️
... and 12 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1824313...7c21b76. Read the comment docs.