Fix sync behaviour for imported files

[stalleyj]

What type of PR is this ?

• [X] Bug fix
• [ ] Enhancement

What does this PR do ?

This PR fixes our syncing behaviour to identify files that have been imported into the project via the Eclipse IDE. When a user does this, the modified time of the file does not get updated so our current sync checks for last mod time > last sync time don't pick up the new files.

The new behaviour looks to see if each file contained in the project (on the users disk) is in the list of files for the project (that have been uploaded to codewind). If that file doesn't exist, it will be uploaded.

Which issue(s) does this PR fix ?

https://github.com/eclipse/codewind/issues/2860

Does this PR require a documentation change ?

No

Any special notes for your reviewer ?

No

[codecov[bot]]

Codecov Report

Merging #494 into master will decrease coverage by 0.06%. The diff coverage is 35.80%.

@@            Coverage Diff             @@
##           master     #494      +/-   ##
==========================================
- Coverage   19.83%   19.77%   -0.07%     
==========================================
  Files          80       81       +1     
  Lines        7014     7061      +47     
==========================================
+ Hits         1391     1396       +5     
- Misses       5453     5495      +42     
  Partials      170      170              

Impacted Files	Coverage Δ
pkg/project/filelist.go	0.00% <0.00%> (ø)
pkg/project/sync.go	55.64% <46.77%> (-4.62%)	:arrow_down:

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[mattcolegate]

Tested on Windows using recreation instructions from https://github.com/eclipse/codewind/issues/2860 - imported hello/Hello.java and project rebuilt and I was able to run the new application from the /hello endpoint