Update dependencies

Author: Ericbla

package.json

@@ -4,11 +4,11 @@
   "description": "Blazing-fast binary parser builder",
   "main": "dist/binary_parser.js",
   "devDependencies": {
-    "mocha": "^6.1.4",
+    "mocha": "^6.2.2",
     "nyc": "^14.1.1",
-    "prettier": "^1.17.1",
-    "@types/node": "^12.0.4",
-    "typescript": "^3.5.1"
+    "prettier": "^1.19.1",
+    "@types/node": "^12.12.12",
+    "typescript": "^3.7.2"
   },
   "scripts": {
     "build": "tsc",
@@ -51,7 +51,7 @@
   },
   "bugs": "http://github.com/Ericbla/binary-parser/issues",
   "dependencies": {
-    "smart-buffer": "^4.0.2"
+    "smart-buffer": "^4.1.0"
   },
   "engines": {
     "node": ">=5.10.0"