Refactor network selector adapter and introduce the following improvements:
* Show only networks that support Dapps
* Select ETH by default once a Wallet is created for the first time
* Remove new account action icon and change title to better reflect UI purpose
* Load network logos from vector assets
* Enable Bitcoin by default on Android
* Introduce supported coin types for account selector
* Return Bitcoin logo for Bitcoin mainnet and testnet
* Remove unused methods and simplify CryptoModel implementation
* Implement Wallet creation method that includes selected networks
* Refactor network model and remove unused networks
* Perform refactoring to onboarding fragments and their model
* Include new network selection fragment
* Return keyring IDs for Bitcoin mainnet and testnet
* Add Neon logo
* Include Bitcoin among supported networks
* Simplify layout to avoid view pager glitches
* Remove plus button from network selector
* Implement new auto span grid layout manager
* Implement new adapter that shows available networks
* Tweak primary text color and action bar background color
* Tweak chip selector colors
* Optimize text color attributes
* Network selector icon size
* Tweak Assets text view
* Apply new Wallet background color
* Tweak Wallet background color and toolbar background color
* Add divider lines below toolbar and above navigation bar
* Tweak bottom navigation view style and minor improvements
* Apply code formatting
* Remove duplicated style
* Implement multi network selector and resolve conflicts
* Remove selected network
* Rename type to mode
* Fetch assets of selected networks
* Formatting
* Show selected networks and add close option
* Update network selector button
* Implement empty asset state
* Fix NFT empty and loading state
* Update colors
* Add divider
* Fix ups
* Add strings and clean up
* Minor review changes
* Adds network selection menu item to `NetworkSelectorActivity` toolbar.
* Implements `refreshNetworks` method in `NetworkModel` class.
* Reflects new changes when a network is added, removed or edited.
* Add VPN callout modal UI
* Add settings callout UI
* Add vpn menu
* Add vpn profile implementation
* Add adnroid 11 flag
* Add vpn plans activity
* Add billing dependency for in app purchase
* Add confirm dialog
* Add ignore manifest
* Add In app purchase for subscription
* Add native function for profile credential
* Add vpn notification
* Add all server regions in pref
* Add loading UI for preferences
* Add QA flag
* Get hostname with suggested algorithm
* Add base class for dialog fragments
deeppandya