Parse BAG2 leveringsdocument instead of relying on filename

[matthijsln]

BRMO-153

The filename is still considered first so when checking a big list of available mutaties whether they should be applied it does not require extracting the leveringsdocument for each one, leading to a lot of partial HTTP requests. The fallback if the name is not in a known format is to parse the leveringsdocument from the ZIP.

[codecov]

Codecov Report

Merging #1372 (07fad8a) into master (b5aa174) will decrease coverage by 0.02%.
The diff coverage is 38.05%.

@@             Coverage Diff              @@
##             master    #1372      +/-   ##
============================================
- Coverage     36.13%   36.11%   -0.03%     
- Complexity      809     1188     +379     
============================================
  Files           407      407              
  Lines         18793    18840      +47     
  Branches       1878     1880       +2     
============================================
+ Hits           6791     6804      +13     
- Misses        11401    11430      +29     
- Partials        601      606       +5     

Impacted Files	Coverage Δ
.../b3p/brmo/bag2/loader/cli/BAG2MutatiesCommand.java	0.00% <0.00%> (ø)
...va/nl/b3p/brmo/bag2/loader/cli/BAG2LoaderMain.java	38.13% <7.69%> (+0.16%)	⬆️
.../java/nl/b3p/brmo/bag2/loader/BAG2LoaderUtils.java	50.44% <51.61%> (-19.40%)	⬇️

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[mprins]

Toch kans gezien om regex en jaxb te gebruiken 😆