Convert jsonrpc & typings to definitions (#2064)

* Convert jsonrpc & typings to definitions

* Handle empty interface generation (no types)

* Move jsonrpc/create to rpc-core/create

* Create imports

* Remove jsonrpc package, generate rpc-core from defs

* Debug :)

* Generate RPC definitions via interfaces

* Generate md docs

* Remove @polkadot/jsonrpc refs (at least packages)

* No empty types

* Add PAHNTOM "cleanup" gen

* *sigh* regex loop

* Update mock for no jsonrpc

* Add definition export types

* Cleanup linting

* Mocking 1 fix

* Mocking 2 fix

* rpc-core tests updates

* CHANGELOG & docs

* Add jsonrpc (already mapped) to interfaces

* Add aliasses for RPCs

* Fix rpc-core tests

packages/typegen/scripts/polkadot-types-chain-info.js

@@ -17,7 +17,6 @@ try {
           '^@polkadot/api-derive(.*)': './packages/api-derive/src\\1',
           '^@polkadot/metadata(.*)': './packages/metadata/src\\1',
           '^@polkadot/api(.*)': './packages/api/src/\\1',
-          '^@polkadot/jsonrpc(.*)': './packages/jsonrpc/src\\1',
           '^@polkadot/rpc-core(.*)': './packages/rpc-core/src\\1',
           '^@polkadot/rpc-provider(.*)': './packages/rpc-provider/src\\1',
           '^@polkadot/types(.*)': './packages/types/src\\1'

packages/typegen/scripts/polkadot-types-internal-interfaces.js

@@ -14,7 +14,6 @@ try {
     plugins: [
       ['module-resolver', {
         alias: {
-          '^@polkadot/jsonrpc(.*)': './packages/jsonrpc/src\\1',
           '^@polkadot/metadata(.*)': './packages/metadata/src\\1',
           '^@polkadot/types(.*)': './packages/types/src\\1'
         }

packages/typegen/scripts/polkadot-types-internal-metadata.js

@@ -14,7 +14,6 @@ try {
     plugins: [
       ['module-resolver', {
         alias: {
-          '^@polkadot/jsonrpc(.*)': './packages/jsonrpc/src\\1',
           '^@polkadot/metadata(.*)': './packages/metadata/src\\1',
           '^@polkadot/types(.*)': './packages/types/src\\1'
         }