ReaperPy v6.1.0

How-to guides for beginners, built into the program. Please update - nothing else changes for existing projects.

Added

• How-to guides for beginners. 13 step-by-step guides in German and English (first steps, find a value, edit cheats, assembler for
  beginners, items in Unreal / Unity games, values and live values, export, pointers, debugger, advanced tools, troubleshooting,
  glossary). They are plain Markdown files in docs/howto/de and docs/howto/en, so they can be read on GitHub as well. The program
  shows them in the language of the DE / EN switch (the open guide switches at once), with a search box and links between guides.
  • New HOW TO button (German: ANLEITUNGEN) in the top bar of the main window opens the guides in their own window - no console
    connection needed.
  • ? HELP in the tools window and the entry in the START tab open the same window at the guide that belongs to the current tab.
  • Tests check that both languages have the same structure, that every link and every button name used in a guide really exists in the
    program, that every tab has a guide, and that the guides contain no game names and no emoji or symbol characters.
• English texts appear at once. Texts set later (configure(text=...), new widgets, context menus, table headings and tab titles) are
  translated when they are set, instead of showing German until the next 2-second pass (new install_text_hooks in tools_i18n.py, test
  test_i18n_text_hooks.py).
• theme.py: colour for the warning boxes in the guides (CALLOUT_WARN_BG), covered by a contrast test.

Changed

• ReaperPy.spec packs docs/howto into the build.
• README: new section "How-to guides for beginners", file overview extended.