Subscription games refactor & cache

[UncleGoogle]

• [x] installing - redirect to browser
• [x] choice: persistent cache
• [x] os compatibility - ignore?
• [x] test for trove games
• [x] fix trove cache
• [x] test for choice games
• [x] test for installing choice game

[lgtm-com[bot]]

This pull request introduces 1 alert when merging 92d9afd99ea3eb8a8289df536558d82d84e13ac7 into f80ddb939f9cda3ecf2a2b2ffb501f2c110093e2 - view on LGTM.com

new alerts:

• 1 for Unused import

[lgtm-com[bot]]

This pull request introduces 1 alert when merging 34446cf3cfeee5a42831112209c6d7779aa13686 into f80ddb939f9cda3ecf2a2b2ffb501f2c110093e2 - view on LGTM.com

new alerts:

• 1 for Unused import

[lgtm-com[bot]]

This pull request introduces 1 alert when merging bbbbe6ade44d643412156730736bb67eafdedac1 into f80ddb939f9cda3ecf2a2b2ffb501f2c110093e2 - view on LGTM.com

new alerts:

• 1 for Unused import

[lgtm-com[bot]]

This pull request fixes 6 alerts when merging e9b378ce08ea92c29a2a3bdce0be520a9cc5ffac into f80ddb939f9cda3ecf2a2b2ffb501f2c110093e2 - view on LGTM.com

fixed alerts:

• 5 for Unused import
• 1 for Missing call to __init__ during object initialization

[lgtm-com[bot]]

This pull request fixes 6 alerts when merging eebaf52528ad17a0eab41069f975ae25246c6725 into f80ddb939f9cda3ecf2a2b2ffb501f2c110093e2 - view on LGTM.com

fixed alerts:

• 5 for Unused import
• 1 for Missing call to __init__ during object initialization

[lgtm-com[bot]]

This pull request fixes 6 alerts when merging 7aae0212f71384aced53da5189e666b8de0b73df into f80ddb939f9cda3ecf2a2b2ffb501f2c110093e2 - view on LGTM.com

fixed alerts:

• 5 for Unused import
• 1 for Missing call to __init__ during object initialization