Maker PSM integration [TKR-2] (#150)

* ADDS basic boilerplate for PSM bridge WIP

* ADDS integrate the MakerPSM mixin and fix incorrect naming

* fix: take into account PSM fee when buying USDC from PSM

* feat: intial stab at a PSM sampler WIP

* feat: integrate MakerPsm into AS WIP

* refactor: get VAT contract address from PSM instead of passing it in

* fix: hardcode PSM Gemtoken to USDC

* fix: remove passing in authGem, get from PSM contract instead

* fix: use constant modified to avoid using storage variables

* fix: incorrect num decimals after multiplication in sampler

* fix: PSM buy sampling

* fix: use fillData to estimate gas schedule

* Rebased on latest development

* Guard and use latest Curve LiquidityProvider

* `@0x/contract-addresses`: Redeploy FQT on mainnet and ropsten

Co-authored-by: Jacob Evans <jacob@dekz.net>
Co-authored-by: Lawrence Forman <lawrence@0xproject.com>

packages/contract-addresses/CHANGELOG.json

@@ -1,6 +1,6 @@
 [
     {
-        "version": "6.0.0-bsc.0",
+        "version": "6.0.0",
         "changes": [
             {
                 "note": "Add BSC chain addresses",
@@ -13,6 +13,10 @@
             {
                 "note": "Redeployed FQT on BSC",
                 "pr": 181
+            },
+            {
+                "note": "Redeployed FQT on mainnet and ropsten",
+                "pr": 150
             }
         ]
     },

packages/contract-addresses/addresses.json

@@ -36,7 +36,7 @@
             "wethTransformer": "0xb2bc06a4efb20fc6553a69dbfa49b7be938034a7",
             "payTakerTransformer": "0x4638a7ebe75b911b995d0ec73a81e4f85f41f24e",
             "affiliateFeeTransformer": "0xda6d9fc5998f550a094585cf9171f0e8ee3ac59f",
-            "fillQuoteTransformer": "0x227e767a9b7517681d1cb6b846aa9e541484c7ab",
+            "fillQuoteTransformer": "0xb8e40acea68db2a7a2020a3eba2664ba4c3b3e3d",
             "positiveSlippageFeeTransformer": "0xa9416ce1dbde8d331210c07b5c253d94ee4cc3fd"
         }
     },
@@ -77,7 +77,7 @@
             "wethTransformer": "0x05ad19aa3826e0609a19568ffbd1dfe86c6c7184",
             "payTakerTransformer": "0x6d0ebf2bcd9cc93ec553b60ad201943dcca4e291",
             "affiliateFeeTransformer": "0x6588256778ca4432fa43983ac685c45efb2379e2",
-            "fillQuoteTransformer": "0x2088a820787ebbe937a0612ef024f1e1d65f9784",
+            "fillQuoteTransformer": "0xc0c6fc6911978a65fe3b17391bb30b630bfc637d",
             "positiveSlippageFeeTransformer": "0x8b332f700fd37e71c5c5b26c4d78b5ca63dd33b2"
         }
     },