This allows external integrations ( btcpay docker fragments) to highlight specific plugins as recommended to be installed. Also moved the remote option to a config option instead of a url query param to avoid messy situations where users could get deceived with a generated url. The dockerfiles also have an additional csproj to build and the plugin dir was renamed correctly from extensions to plugins
* BTCPay Extensions Part 2
This PR cleans up the extension system a bit in that:
* It renames the test extension to a more uniform name
* Allows yo uto have system extensions, which are extensions but bundled by default with the release (and cannot be removed)
* Adds a tool to help you generate an extension package from a csproj
* Refactors the UI extension points to a view component
* Moves some more interfaces to the Abstractions csproj
* Rename to plugins
* Remove SQLite as default option
IF MERGED, STORES WITH NO DB CONFIG WILL NOT START UNTIL CONFIG IS UPDATED WITH `sqlitefile=sqlite.db`
* remove sqlite conn string option
* toggle between abs path or relative for sqlite db
* Update DefaultConfiguration.cs
* BPU Prep Work Part2
* Adjust tests to use the hot wallet when registering deriv scheme
* Add amount to payment data view for onchain payments
* Make zone limits higher when in dev mode (for tests in next PR)
* Make IPaymentMethodDetails serialize/deserialize through payment type using the network
* Allow named settings through settings repo
* Refactor some extensions for next PR
* pr changes
* use json convert for now
* BitcoinSpecificBtcPayNetwork - abstract BTCPayNetwork
* some type fixes
* fix tests
* simplify fetching handler in invoice controller
* rename network base and bitcoin classes
* abstract serializer to network level
* fix serializer when network not provided
* fix serializer when network not provided
* fix serializer when network not provided
* try fixes for isolating pull request
* Part 1: OpenIddict - Minor Changes & Config prep
* add missing nuget
* pr changes
* pr fixes
* remove config for openid -- no need for it for now
* remove unused extension
* Add tests
* use pay tester http client
* check redirecturl in tests
