evm t9n should reject values greater than 256-bit for gasPrice and Value

[marioevz]

Currently, during transaction tests that attempt to overflow the gasPrice and Value fields using values equal to or greater than 2**256, the transactions are accepted as valid.

The suggested feature change is that t9n rejects values greater than or equal to 2**256 in these fields.

The impact of this change to block validation should be none since, in actuality, no account can have a balance greater than these values and the transactions should end up being rejected anyway, but the benefit of this change is for testing purposes only.

[holiman]

Reference transaction with high value:

rlpdump -hex f880806482520894d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0a1010000000000000000000000000000000000000000000000000000000000000001801ba0c16787a8e25e941d67691954642876c08f00996163ae7dfadbbfd6cd436f549da06180e5626cae31590f40641fe8f63734316c4bfeb4cdfab6714198c1044d2e28
[
  "",
  "d",
  5208,
  d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0,
  010000000000000000000000000000000000000000000000000000000000000001,
  "",
  1b,
  c16787a8e25e941d67691954642876c08f00996163ae7dfadbbfd6cd436f549d,
  6180e5626cae31590f40641fe8f63734316c4bfeb4cdfab6714198c1044d2e28,
]

[holiman]

@marioevz PTAL if #23743 does what you expect

[marioevz]

It works great with value and gasPrice, I need to produce transaction tests for the other fields, thanks.