Add 'Download Sources' command and add new parameters

[frombetelgeuse]

No description provided.

[codecov]

Codecov Report

Merging #65 (ba1f01e) into master (6b04e08) will increase coverage by 0.68%.
The diff coverage is 12.80%.

@@             Coverage Diff             @@
##             master     #65      +/-   ##
===========================================
+ Coverage      8.93%   9.60%   +0.68%     
- Complexity       47      61      +14     
===========================================
  Files            34      36       +2     
  Lines          1445    1750     +305     
  Branches        172     213      +41     
===========================================
+ Hits            129     168      +39     
- Misses         1277    1539     +262     
- Partials         39      43       +4     

Impacted Files	Coverage Δ
...c/main/java/com/crowdin/action/DownloadAction.java	0.00% <0.00%> (ø)
...java/com/crowdin/action/DownloadSourcesAction.java	0.00% <0.00%> (ø)
src/main/java/com/crowdin/action/UploadAction.java	0.00% <0.00%> (ø)
...va/com/crowdin/action/UploadFromContextAction.java	0.00% <0.00%> (ø)
...a/com/crowdin/action/UploadTranslationsAction.java	0.00% <0.00%> (ø)
...in/action/UploadTranslationsFromContextAction.java	0.00% <0.00%> (ø)
src/main/java/com/crowdin/client/Crowdin.java	0.00% <0.00%> (ø)
...om/crowdin/client/CrowdinProjectCacheProvider.java	0.00% <0.00%> (ø)
...c/main/java/com/crowdin/client/RequestBuilder.java	0.00% <0.00%> (ø)
...ain/java/com/crowdin/event/FileChangeListener.java	16.42% <0.00%> (ø)
... and 13 more

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