This commit changes several settings. The main reason is to have them
contained in one search group, and not spread over the search and string group.
This becomes important with the search refactor, since the search is now also
more contained in a single module and can make use of the more settings.
- Remove str.search.max_uni_blocks - Effectively a metric the user should not know about; adds too much complexity. Also not documented.
- str.search.encoding -> str.encoding - Valid for all string interpretations.
- str.search.max_threads -> search.max_threads - This is a general setting for the search now.
- str.search.raw_alignment -> search.str.raw_alignment - Unify settings (only used for RzBin search.).
- str.search.min_length -> search.str.min_length - Unify settings.
- str.search.buffer_size -> search.str.max_length - Unify settings.
- str.search.max_region_size -> search.str.max_region_size - Unify settings.
- str.search.check_ascii_freq -> search.str.check_ascii_freq - Unify settings.
Part 3/9. Likely won't build in between parts.
Co-authored-by: wargio <deroad@kumo.xn--q9jyb4c>
