Cleanup: Rename bytecode to bytesequence.

Cleanup: Rename bytecode to bytesequence.

The term "bytecode" already exists and is used for a slighty different purpoe (representing compiled or partially compiled data).
This is a different context.
To avoid using the term improperly, switch to a more proper term "bytesequence" (as one word).
A byte sequence is a term representing a sequence of bytes.
This is more specific than binary and effectively emphasis that this is in regards to bytes.
Avoiding the term binary, however correct or not the term may be, helps avoid confusion due to "binary" and "text" data being considered two separate things.