Move initializer of `dyaml.resolver.regexes` from static this

[tom-tan]

It moves the initialization step for regexes from static this to a simple initializer. It partially solves #33.

[codecov[bot]]

Codecov Report

Merging #266 (e676521) into master (ecbd63e) will decrease coverage by 0.01%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #266      +/-   ##
==========================================
- Coverage   95.27%   95.26%   -0.02%     
==========================================
  Files          28       28              
  Lines        4083     4073      -10     
==========================================
- Hits         3890     3880      -10     
  Misses        193      193              

Impacted Files	Coverage Δ
source/dyaml/resolver.d	92.15% <ø> (-1.29%)	:arrow_down:

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[Herringway]

Looks good to me.

[tom-tan]

Thanks!