Implement cache for improved listing performance

[VishalNehra]

Description

Adds a LruCache for local paths, document files, smb / sftp and cloud storages i.e. least recently visited path will be removed. For local paths, adds to cache only if list size is > 100 files. For all other open modes cache is added regardless of list size Lru Cache size is 50 paths for now.

Also builds separate cache for images / videos / music / documents / apks that are accessed from navigation drawer so that we don't spend time loading them again and again.

Issue tracker

Automatic tests

• [ ] Added test cases

Manual tests

• [x] Done

Build tasks success

Successfully running following tasks on local:

• [x] ./gradlew assembledebug
• [x] ./gradlew spotlessCheck

[VishnuSanal]

open a folder with a lot of files -> open another folder within -> press back button -> it goes back as expected, but the spinner on SwipeRefreshLayout doesn't pop up until previous page appears, this feels like an ANR. works fine on release/3.8.

(folders I used to test were /storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/ and /storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/Sent)

[VishalNehra]

Can you show a video. I don't think it's an ANR. That's a default behaviour if list loads too fast we can see the SwipeRefreshLayout appears and disappers immediately

open a folder with a lot of files -> open another folder within -> press back button -> it goes back as expected, but the spinner on SwipeRefreshLayout doesn't pop up until previous page appears, this feels like an ANR. works fine on release/3.8.

(folders I used to test were /storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/ and /storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/Sent)

[VishnuSanal]

Can you show a video. I don't think it's an ANR. That's a default behaviour if list loads too fast we can see the SwipeRefreshLayout appears and disappers immediately

open a folder with a lot of files -> open another folder within -> press back button -> it goes back as expected, but the spinner on SwipeRefreshLayout doesn't pop up until previous page appears, this feels like an ANR. works fine on release/3.8. (folders I used to test were /storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/ and /storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Images/Sent)

Never mind! it works perfectly fine now - PFA the recording (: (the first one is v3.7.2 from Play Store & the second one is the current feature/listing-cache branch)

https://user-images.githubusercontent.com/50027064/184527227-4518a690-cd00-4c65-82b1-b7ee57f8e1ec.mp4