core: move genesis alloc types to core/types (#29003)

We want to use these types in public user-facing APIs, so they shouldn't be in core.

Co-authored-by: Felix Lange <fjl@twurst.com>

consensus/clique/clique_test.go

@@ -47,7 +47,7 @@ func TestReimportMirroredState(t *testing.T) {
 	genspec := &core.Genesis{
 		Config:    params.AllCliqueProtocolChanges,
 		ExtraData: make([]byte, extraVanity+common.AddressLength+extraSeal),
-		Alloc: map[common.Address]core.GenesisAccount{
+		Alloc: map[common.Address]types.Account{
 			addr: {Balance: big.NewInt(10000000000000000)},
 		},
 		BaseFee: big.NewInt(params.InitialBaseFee),