Add v1.1.0 update

[msolefonte]

• Remove fs-ext and reflect the new concurrency problem
• Fix a bug that happend when a database game with invalid values was loaded
• Add methods to the API of Celes
  • addGame()
  • removeManaullyAddedGame()
  • unlockAchievement()
  • removeManuallyUnlockedAchievement()
• Add tests for the new methods
• Minor fixes

[codeclimate[bot]]

Code Climate has analyzed commit b165ce5f and detected 3 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	1
Duplication	2

View more on Code Climate.

[codecov[bot]]

Codecov Report

Merging #59 (b165ce5) into beta (7b4215a) will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              beta       #59   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           26        27    +1     
  Lines          701       789   +88     
  Branches        77        86    +9     
=========================================
+ Hits           701       789   +88     

Impacted Files	Coverage Δ
src/lib/plugins/GreenLuma.ts	100.00% <ø> (ø)
src/lib/utils/CelesMutex.ts	100.00% <ø> (ø)
src/lib/Celes.ts	100.00% <100.00%> (ø)
src/lib/utils/CelesDbConnector.ts	100.00% <100.00%> (ø)
src/lib/utils/errors.ts	100.00% <100.00%> (ø)
src/lib/utils/gameDataUtils.ts	100.00% <100.00%> (ø)