Adding push0 stack diff

[jkhollandjr]

Panoramix is often unable to find function descriptions and decompile solidity smart contracts since solidity version 0.8.20, giving the output:

INFO Functions decompilation finished, now doing post-processing.
# Palkeoramix decompiler.
#
#  I failed with these:
#  - _fallback(?)
#  All the rest is below.
#

This can also be seen when using the Etherscan bytecode compiler tool: Example Decompilation

I believe the problem can be fixed by simply adding the stack diff for the push0 opcode, as shown in this pull request.