Add Unknown txn, remove maximum fee (#137)

* remove maximum fee

* update feeCalculationStrategy test

* add in unknown transaction

* update version to v0.9.18

* update package

package.json

@@ -1,6 +1,6 @@
 {
   "name": "tsjs-xpx-chain-sdk",
-  "version": "0.9.17",
+  "version": "0.9.18",
   "description": "Proximax Blockchain sdk for typescript and javascript",
   "scripts": {
     "pretest": "npm run build",
@@ -42,9 +42,9 @@
     "assert": "^2.0.0",
     "chai": "^4.3.6",
     "chai-spies": "^1.0.0",
-    "config": "^3.2.2",
+    "config": "^3.3.9",
     "coveralls": "^3.0.5",
-    "mocha": "^9.2.1",
+    "mocha": "^10.2.0",
     "nyc": "^15.1.0",
     "secure-random": "^1.1.2",
     "ts-mockito": "^2.4.2",