Bump parser to 0.7.0 (sc-forks#529) (sc-forks#530)

Co-authored-by: Jonathan Underwood <junderwood@bitcoinbank.co.jp>

Author: cgewecke

package.json

@@ -24,7 +24,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@solidity-parser/parser": "^0.6.0",
+    "@solidity-parser/parser": "^0.7.0",
     "@truffle/provider": "^0.1.17",
     "chalk": "^2.4.2",
     "death": "^1.1.0",