Relax spec filename requirements

[jorisvaesen]

I don't see any reason for forcing filename requirements other than the extension. Since we are only scanning the dto folder, it should not contain any other files with that extension than specifications.

In the future i even think relaxing the configPath should be an option, hardcoded forcing the dto folder seems unnecessary when the path to scan is easily configurable.

[codecov-commenter]

Codecov Report

Merging #56 (883dad9) into master (10427ba) will increase coverage by 0.04%. The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master      #56      +/-   ##
============================================
+ Coverage     81.73%   81.77%   +0.04%     
  Complexity      460      460              
============================================
  Files            17       17              
  Lines          1040     1037       -3     
============================================
- Hits            850      848       -2     
+ Misses          190      189       -1     

Impacted Files	Coverage Δ
src/Generator/Finder.php	100.00% <100.00%> (+7.14%)	:arrow_up:

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[dereuromark]

It was mainly to easier loop through all files here. But we probably dont need it, yes. Any reason why we would want to relax this more?

[jorisvaesen]

When the search path would be configurable, it would relax folder structure requirements which could collide with existing structures. Also, it would allow developers to not put all api specs in the same folder. It could be cleaner to split them up in subfolders.