Implement caching

[ErykDarnowski]

Description

Add it for gog.js's gameID and other /store_module files?

After first run / saving config with new GOG URL save gameID until URL is changed.

Check for faster method (https://www.quora.com/How-is-SQLite-faster-than-writing-to-a-normal-file ; https://healeycodes.com/saving-data-in-javascript-without-a-database):

• better-sqlite3
• saving to file (fs) <- seems to be faster

[ErykDarnowski]

Benchmarks:

Setup:

• Linux Fedora VM (6 cores 12GB RAM)
• Performed creation of 1 db / file, reading data and deletion of db / file

Results:

[ErykDarnowski]

TODO

• [ ] Benchmark speeds
• [ ] Optimize JSON structure
• [ ] Optimize updating values
• [ ] Add cache implementation to:
  • [ ] epic.js
  • [ ] steam.js
  • [ ] microsoft.js

[ErykDarnowski]

Benchmarks:

Setup:

• Linux Fedora VM (6 cores 12GB RAM)
• no EPIC request
• Performed:
  • noCache = no cache (getting data with puppeteer)
  • firstRun = getting data with puppeteer and creating cache.json file
  • secondRun = getting data from cache.json file

Results: