added gas api config in mm2.conf
use platform coin for web3 conn
check chain id

* dev:
  feat(zcoin): ARRR WASM implementation (#1957)
  feat(trading-proto-upgrade): locked amounts, kmd burn and other impl (#2046)
  fix(indexeddb): set stop on success cursor condition (#2067)
  feat(config): add `max_concurrent_connections` to mm2 config (#2063)
  feat(stats_swaps): add gui/mm_version in stats db (#2061)
  fix(indexeddb): fix IDB cursor.continue_() call after drop (#2028)
  security bump for `h2` (#2062)
  fix(makerbot): allow more than one prices url in makerbot (#2027)
  fix(wasm worker env): refactor direct usage of `window` (#1953)
  feat(nft): nft abi in withdraw_nft RPC, clear_nft_db RPC (#2039)
  refactor(utxo): refactor utxo output script creation (#1960)
  feat(ETH): balance event streaming for ETH (#2041)
  chore(release): bump mm2 version to 2.1.0-beta (#2044)
  feat(trezor): add segwit support for withdraw with trezor (#1984)

* dev:
  feat(indexeddb): advanced cursor filtering impl (#2066)
  update dockerhub destination repository (#2082)
  feat(event streaming): configurable worker path, use SharedWorker (#2080)
  fix(hd_tests): fix test_hd_utxo_tx_history unit test (#2078)
  feat(network): improve efficiency of known peers handling (#2074)
  feat(nft): enable eth with non fungible tokens (#2049)
  feat(ETH transport & heartbeats): various enhancements/features (#2058)

…price rpcs, fix 'priority_rewards' in FeeHistory

…ed trait tx_hash to tx_hash_as_bytes to avoid conflict

… swap step

…re okay

add delay in test fn wait_for_confirmation to avoid false err

* dev:
  feat(zcoin): balance event streaming (#2076)
  feat(zcoin): tx_history support for WASM target (#2077)

* dev:
  feat(nft-swap): nft swap protocol v2 POC (#2084)
  fix(zcoin): syncing and activation improvements (#2089)
  feat(crypto): mnemonic generation/encryption/decryption/storage (#2014)
  fix(eth): error handling in RPCs (#2090)

…e get_gas_price fn) and convert to gwei decimal for gui

…is included

…low gas priority fee tests to work

* dev:
  fix(tests): fix failing tests (#2085)
  fix(wasm): websocket url validation (#2096)
  deps(zcoin): use librustzcash that uses the same `aes` version as mm2 (#2095)

* dev:
  feat(app-dir): implement root application dir `.kdf` (#2102)
  fix tendermint fee calculation (#2106)
  update dockerfile (#2104)
  docs(README): remove outdated information from the README (#2097)
  fix(sia): fix sia compilation after hd wallet PR merge (#2103)
  feat(hd_wallet): utxo and evm hd wallet and trezor (#1962)
  feat(sia): initial Sia integration (#2086)
  fix(BCH): deserialize BCH header that uses KAWPOW version correctly (#2099)
  fix(eth_tests): remove ETH_DEV_NODE from tests (#2101)
  feat(coin): support nucleus as an alternative to iris HTLC (#2079)

* dev:
  fix(eth): remove my_address from sign_and_send_transaction_with_keypair (#2115)
  fix(utxo-swap): apply events occurred while taker down (#2114)
  refactor(memory): memory usage improvements (#2098)

* dev:
  feat(tendermint): pubkey-only activation and unsigned tx (#2088)
  fix(tests): set txfee for some tbtc tests (#2116)