BIP158: include the direct pkScript rather than its data pushes

In this commit, we modify regular filter construction slightly. Rather than including each pushed data in the script, we instead just include the script directly, which will eventually be hashed. The rationale for doing this is two-fold: * Most scripts today and in the foreseeable future will just be a commitment. * Including only the script itself and not the hash of the script reduces the worst case filter size. Otherwise, an attacker could include a bunch of 2 byte push dat

Specification