Add DAI, BUSD and USDD

Author: dresnite

contracts/Pigify.sol

@@ -12,9 +12,11 @@ contract Pigify is PigifyTokenPool, PigifyNativeToken {
         taxCollector = msg.sender;
 
         _registerToken(Token.PGY, address(this), 0);
-
-        _registerToken(Token.USDT, address(0x5AB6F31B29Fc2021436B3Be57dE83Ead3286fdc7), 1 * 10 ** 18);
-        _registerToken(Token.USDC, address(0x466595626333c55fa7d7Ad6265D46bA5fDbBDd99), 1 * 10 ** 18);
+        _registerToken(Token.USDT, address(0x55d398326f99059fF775485246999027B3197955), 1 * 10 ** 18);
+        _registerToken(Token.USDC, address(0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d), 1 * 10 ** 18);
+        _registerToken(Token.BUSD, address(0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56), 1 * 10 ** 18);
+        _registerToken(Token.USDD, address(0xd17479997F34dd9156Deef8F95A52D81D265be9c), 1 * 10 ** 18);
+        _registerToken(Token.DAI, address(0x1AF3F329e8BE154074D8769D1FFa4eE058B1DBc3), 1 * 10 ** 18);
     }
 
     modifier onlyCollector {

contracts/PigifyTokenRegistrar.sol

@@ -9,7 +9,10 @@ contract PigifyTokenRegistrar {
     enum Token {
         PGY,
         USDT,
-        USDC
+        USDC,
+        BUSD,
+        USDD,
+        DAI
     }
 
     struct TokenRegistrarEntry {