feat: pre-populated scorer download

[Jasonvdb]

• Android and iOS download a pre-populated scorer from RGS server to improve payment reliability.
• Removed old backup function calls from example app.
• Added deprecated warnings to old backup calls, will remove completely in a future PR to simplify the code.
• Startup speed improvements:
  • Grouped startup functions that are not required to be run in any order to run async.
  • Skip startup param check skipParamCheck: true in lm.start(). Can be left on default false for debugging but should be used to avoid additional network calls on each startup once in prod.
  • addPeers and sync methods called without await at the end of startup.

[coreyphillips]

Having stuttering and freezing issues on live Bitkit Mainnet Android device.

2023-11-13 10:27:11 DEBUG (JS): setAccountStoragePath() success. 
2023-11-13 10:27:11 DEBUG (JS): readFromFile() success. "seed"
2023-11-13 10:27:12 DEBUG (JS): initKeysManager() success. 
2023-11-13 10:27:12 DEBUG (LDK): Processing RGS update from 1699876800 with 0 nodes, 0 channel announcements and 0 channel updates. (lightning_rapid_gossip_sync::processing 148)
2023-11-13 10:27:12 DEBUG (JS): initNetworkGraph() success. "Rapid gossip sync Enabled"
2023-11-13 10:27:12 DEBUG (JS): initUserConfig() success. {"channel_handshake_config":{"announced_channel":false,"minimum_depth":1,"max_htlc_value_in_flight_percent_of_channel":100,"max_inbound_htlc_value_in_flight_percent_of_channel":100,"negotiate_anchors_zero_fee_htlc_tx":true},"manually_accept_inbound_channels":true,"accept_inbound_channels":true}
2023-11-13 10:27:12 INFO (LDK): Successfully loaded channel e1735f27c23cbe9f5ff1186cb0a218077caeabcee111234786d6779906d9fd11 at update_id 650 against monitor at update id 650 (lightning::ln::channelmanager 10002)
2023-11-13 10:27:12 INFO (LDK): Queueing monitor update to ensure missing channel 9d321251813d5a6ee7f3818fd5e453f3c7a3d134c3a42e8f1d57e8e563d8f969 is force closed (lightning::ln::channelmanager 10047)
2023-11-13 10:27:12 Node ID: 02bc2b169133131d0290fde406d4293cd2e40d777ef8875f6de9866c3f8a0ffea4
2023-11-13 10:28:39 ERROR (LDK): ChannelMonitor[Update] persistence failed unrecoverably. This indicates we cannot continue normal operation and must shut down. (lightning::chain::chainmonitor 736)

[coreyphillips]

Fresh installs seem fine for both bitkit (master)-react-native-ldk (master) & bitkit (master)-react-native-ldk (scorer-download). Unable to reproduce initial stutter/freeze issue.