Process memory provider, native theming, better information view

Additions

• Added a "Save Project" menu entry to quickly save the current project without specifying a path
• Added byte Type distribution, digram and layered distribution plots to information view
• Added support for pasting byte strings with 0x prefixes or commas inbetween in the hex editor view. Thanks to @Diadlo for their initial implementation of this
• Added native theming support
  • New themes can now simply be placed in the %IMHEX%/themes folder for them to be loaded
• Added a Process Memory Provider on Windows
  • This provider can attach to any process and read its entire address space
  • It can also list all available sections and modules, and inject new DLLs

Improvements

• ImHex now automatically disables unicode support if the used GPU doesn't have enough VRAM to load all glyphs
• Debug builds now completely ignore plugins that are not in the plugins folder next to the executable
  • This is useful for debugging issues especially on Linux systems where ImHex has been installed using a package manager
• The localization system has been completely revamped and now uses simple json files
  • If you plan on adding support for a new language, there's a simple tool to help you with that now. Check out the HACKING.md file for more information
• Improved speed of entropy graph calculation
• Improved German translation. Thanks to @123456abcdef
• Improved Chinese (Simplified) translation. Thanks to @xtexChooser
• ImHex is now compiled using -Wpedantic to make sure we're using valid ISO C++

Bug Fixes

• Fixed building with LTO enabled
• Fixed patterns not appearing if pattern editor is not visible
• Fixed a crash when closing a section view while bytes were selected
• Fixed file provider adding additional zero bytes at the end of the file when saving
• Fixed issues where the hex editor view would sometimes jump back to the start of the file after searching
• Fixed searching for negative floating point values
• Fixed a crash when printing NULL bytes to the pattern console
• Fixed bookmarks displaying too many bytes in some cases
• Fixed saving of projects to paths containing non-ASCII characters
• Fixed various issues where iterators and containers got accessed incorrectly which could lead to issues and crashes
• Fixed template types being placable through the hex editor right click menu

Pattern Language

• Added the ability to modify values in the pattern data view
  • To go into editing mode, double click the value field of a pattern in the pattern data view
  • This works for all built-in types as well as enums by default
  • If you want to make your own types modifyable, use the [[format_write]] attribute
• Arrays are now displayed without extra indentation if there's less than 512 entries in it
• Added visualizers
  • Currently available are a basic line plot and an image visualizer
  • They can be used through the [[hex::visualizer]] attribute
• Added support for anonymous patterns
• Allow sections to be initialized using strings
• Added new std::mem::find_string_in_range function
• str variables can now be used in global scope
• Patterns views can now be placed from functions using the placement syntax
  • This doesn't add a new pattern to the pattern list but can be used to read/write bytes
• Added $[123] syntax to read a single byte from the main memory
• Added support for doc comments
  • These can be parsed and turned into markdown files using the plcli tool
• Allow attributes to directly use rvalues instead of being limited to string literals only
  • This allows you to for example have pattern names, colors and many other things depend on values in the type they are applied to
• Fixed passing local variables to functions
• Fixed array out of bounds checks applying to heap arrays
• File handles are now cleaned up completely after evaluaton finishes
• Fixed reading from bitfield fields that have been placed in a different section
• Fixed [[sealed]] attribute not working correctly with static arrays
• Improved pattern memory usage
• Fixed various issues with reference parameters
• Fixed bitfield fields not respecting endianess settings
• The [[format]] attribute has been deprecated in favour of the new [[format_read]] and [[format_write]] attributes
• Fixed some patterns having no name or a black color
• Fixed broken sign extension of 64 and 128 bit signed variables
• Fixed dynamic arrays always overriding colors
• Fixed indexing of strings and wide strings
• Prevented indexing of non-indexable types

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