The original name was intended to distinguish that this implementation
is the implentation that lives within Bisq's 'core' module. This commit
renames the class to DefaultSeedNodeRepository as this is more idiomatic
and intention-revealing. This implementation is in fact the only one
ever gets used; it is the 'default' (and only) implementation.
The idiomatic approach to naming domain-driven design (DDD)-style
repositories is to use the singular form of the object being
encapsulated by the repository, e.g. BookRepository vs. BooksRepository.
Thus far, the repository interfaces and implementations created here in
Bisq have used the latter, plural form, but going forward we should
revert to the norm. To this end, this commit renames SeedNodesRepository
and its single implementation to SeedNodeRepository and
CoreSeedNodeRepository respectively.
* Now all traffic is going over Tor (price requests from Poloniex could not be routed over Tor because they use Cloudflare)
* Added request to CoinMarketCap to get more prices for altcoins not listed at Poloniex
* Use 2 proxy price feed providers as hidden service for requesting accumulated BitcoinAverage (new API), Poloniex and CoinMarketCap price data
* Add program argument to add custom price feed providers
* Add module for running a own proxy price feed provider (requires BitcoinAverage API keys). Supports both clearnet and hidden service
* Display time of latest price update at tooltip over provider icon in market price widget
* Remove http proxy option because it is not needed anymore (Cloudflare issue with Poloniex solved by the proxy)
* Remove tor bridge support (was not solving GFW issues and caused only problems when connections to Tor failed at startup)
