Added support for Pirate Chain wallets.

Note: this relies on (a modified version of) liblitewallet-jni which is not included, but will ultimately be compiled for each supported architecture and hosted on QDN.

LiteWalletJni code is based on https://github.com/PirateNetwork/cordova-plugin-litewallet - thanks to @CryptoForge for the help in getting this up and running.

src/main/resources/piratechain/coinparams.json

@@ -0,0 +1,8 @@
+{
+  "coin_type": "141",
+  "hrp_sapling_extended_spending_key": "secret-extended-key-main",
+  "hrp_sapling_extended_full_viewing_key": "zxviews",
+  "hrp_sapling_payment_address": "zs",
+  "b58_pubkey_address_prefix": "1cb8",
+  "b58_script_address_prefix": "1cbd"
+}