Document getters and functions for all types (static missing) (#431)

* Document getters and functions for all types (static missing)

* Update SignedBlock.ts

* Bump @polkadot/dev, introduce @noInheritDoc

* Text inherits from String

* Link to indv. types from README

* Add base to UInt toString

package.json

@@ -10,7 +10,7 @@
   ],
   "resolutions": {
     "babel-core": "^7.0.0-bridge.0",
-    "typescript": "^3.1.6"
+    "typescript": "^3.2.1"
   },
   "scripts": {
     "build": "polkadot-dev-build-ts && yarn run build:methodsdoc && polkadot-dev-build-docs",
@@ -24,7 +24,7 @@
   },
   "devDependencies": {
     "@babel/core": "^7.1.6",
-    "@polkadot/dev": "^0.22.5",
-    "@polkadot/ts": "^0.1.39"
+    "@polkadot/dev": "^0.22.6",
+    "@polkadot/ts": "^0.1.40"
   }
 }