testdata: add testdata package (ethereumjs#3940)

* chore: add testdata package

* testdata: fix build

* chore: use exact version number instead of workspace:*

* chore: add 4844 testdata to testdata packgae

* chore: refactor testdata

* chore: npm i

* chore: migrate more test files2

* refactor: eip4844 test data2

* refactor: migate withdrawals geth genesis

* refactor: gethGenesis misc data cleanup

* refactor: migrate goerli and other test data

* refactor: post merge geth genesis

* fix: failing tests

* refactor: more geth genesis test data

* refactor: prelondon test data

* chore: restructure folder

* refactor: consolidate 4844 files and create chainConfigs folder

* chore: add missing allocations

* client: fix test

* monorepo: remove build step

Author: gabrocheleau

test/genesis.spec.ts

@@ -1,13 +1,12 @@
+// kiln genesis with deposit contract storage set
+import { kilnGethGenesis } from '@ethereumjs/testdata'
 import { assert, describe, it } from 'vitest'
 
 import { parseGethGenesisState } from '../src/genesis.ts'
 
-// kiln genesis with deposit contract storage set
-import { gethGenesisKilnData } from './testdata/gethGenesisKiln.ts'
-
 describe('[Util/genesis]', () => {
   it('should properly generate stateRoot from gethGenesis', () => {
-    const genesisState = parseGethGenesisState(gethGenesisKilnData)
+    const genesisState = parseGethGenesisState(kilnGethGenesis)
     // just check for deposit contract inclusion
     assert.equal(
       genesisState['0x4242424242424242424242424242424242424242'][1].includes(