adding factorio mods downloader tool

[SQLJames]

Fix for #45

[SQLJames]

QA involved downloading a specific version of a mod, getting the latest and then also making sure that it respects the update mod flag

kubectl logs -n factorio -l app=factorio-factorio-server-charts -c download-factorio-mods --tail=-1
+ echo 'Running mod-downloader.sh script...'
+ bash /scripts/mod-downloader.sh
Running mod-downloader.sh script...
{"level":"info","ts":1731115924.239907,"caller":"download/official.go:59","msg":"Download Official Params","Name":"factorissimo-2-notnotmelon","Name":"factorissimo-2-notnotmelon","destination":"/factorio/mods","version":"3.5.11","factorioVersion":"v2.0","user":"xxxxxxxxxxxxxxxxxxxx","token":"xxxxxxxxxxxxxxxxxxxx"}
{"level":"info","ts":1731115924.2399685,"caller":"download/official.go:67","msg":"built url","url":"https://mods.factorio.com/api/mods/factorissimo-2-notnotmelon?username=xxxxxxxxxxxxxxxxxxxx&token=xxxxxxxxxxxxxxxxxxxx"}
{"level":"info","ts":1731115924.4533417,"caller":"download/official.go:100","msg":"Version supplied, attempting to pull that version."}
{"level":"info","ts":1731115924.4534082,"caller":"download/official.go:110","msg":"Viable Release","file":"factorissimo-2-notnotmelon_3.5.11.zip"}
Mod update completed.
+ echo 'Finished mod-downloader.sh script'
+ ls -althR /factorio/mods
Finished mod-downloader.sh script
/factorio/mods:
total 5.1M
drwxr-sr-x 2  845 845 4.0K Nov  9 01:32 .
-rw-r--r-- 1  845 845    0 Nov  9 01:32 .mod_update_complete
-rw-r--r-- 1  845 845 5.1M Nov  9 01:32 factorissimo-2-notnotmelon_3.5.11.zip
drwxrwsr-x 6 root 845 4.0K Nov  9 01:32 ..
-rw-r--r-- 1  845 845    7 Nov  9 01:32 factorioVersion

kubectl logs -n factorio -l app=factorio-factorio-server-charts -c download-factorio-mods --tail=-1
Running mod-downloader.sh script...
+ echo 'Running mod-downloader.sh script...'
+ bash /scripts/mod-downloader.sh
{"level":"info","ts":1731116431.7871141,"caller":"download/official.go:59","msg":"Download Official Params","Name":"factorissimo-2-notnotmelon","Name":"factorissimo-2-notnotmelon","destination":"/factorio/mods","version":"","factorioVersion":"v2.0","user":"xxxxxxxxxxxxxxxxxxxx","token":"xxxxxxxxxxxxxxxxxxxx"}
{"level":"info","ts":1731116431.787194,"caller":"download/official.go:67","msg":"built url","url":"https://mods.factorio.com/api/mods/factorissimo-2-notnotmelon?username=xxxxxxxxxxxxxxxxxxxx&token=xxxxxxxxxxxxxxxxxxxx"}
{"level":"info","ts":1731116431.999727,"caller":"download/official.go:110","msg":"Viable Release","file":"factorissimo-2-notnotmelon_3.5.13.zip"}
Mod update completed.
Finished mod-downloader.sh script
+ echo 'Finished mod-downloader.sh script'
+ ls -althR /factorio/mods
/factorio/mods:
total 5.1M
drwxr-sr-x 2  845 845 4.0K Nov  9 01:40 .
-rw-r--r-- 1  845 845    0 Nov  9 01:40 .mod_update_complete
-rw-r--r-- 1  845 845 5.1M Nov  9 01:40 factorissimo-2-notnotmelon_3.5.13.zip
drwxrwsr-x 6 root 845 4.0K Nov  9 01:40 ..
-rw-r--r-- 1  845 845    7 Nov  9 01:40 factorioVersion

kubectl logs -n factorio -l app=factorio-factorio-server-charts -c download-factorio-mods --tail=-1
+ echo 'Running mod-downloader.sh script...'
+ bash /scripts/mod-downloader.sh
Running mod-downloader.sh script...
Mod update already completed previously. Skipping.
Finished mod-downloader.sh script
+ echo 'Finished mod-downloader.sh script'
+ ls -althR /factorio/mods
/factorio/mods:
total 5.1M
-rw-rw-r--  1  845 845    7 Nov  9 01:46 factorioVersion
drwxrwsr-x 11 root 845 4.0K Nov  9 01:46 ..
drwxrwsr-x  2  845 845 4.0K Nov  9 01:44 .
-rw-rw-r--  1  845 845  373 Nov  9 01:44 mod-list.json
-rw-rw-r--  1  845 845  570 Nov  9 01:40 mod-settings.dat
-rw-rw-r--  1  845 845    0 Nov  9 01:40 .mod_update_complete
-rw-rw-r--  1  845 845 5.1M Nov  9 01:40 factorissimo-2-notnotmelon_3.5.13.zip