* Update Steam path detection for Linux
As Steam now uses Proton to install Windows version natively, update
paths so they get found automatically
* Use new Steam path detection on Linux only
This restores Steam path detection on macOS as it doesn't have Proton
* Remove old interop macro
* Remove legacy string macro things
* Unbreak the posix/linux/unix builds
* Add String::IEquals and use it for case insensitive compare
* Add missing include for posix
* Replace _strnicmp with String::StartsWith
* Add LoByte and HiByte into Util.h, swap macros
* Fix android build
* Hopefully last of the string things
* Replace STUB directly with the warning
* Refactor FileScanner to lift a MAX_PATH limit
* Replace Platform::EnsureDirectoryExists with Path::CreateDirectory
* Remove MAX_PATH from Platform.Posix.cpp
* Refactor and clean up date handling
* Remove gDate, remove direct access to days_in_month
* Adjust the MultiLaunch test
* Bump network version
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Co-authored-by: ζeh Matt <5415177+ZehMatt@users.noreply.github.com>
Drastically reduces startup speed because of the
optimization applied to ObjectAsset::GetSize - now the file
size is obtained without reading the entire file into memory.
Clang-format sees the text behind `#pragma region` as code and formats it. Instead of stating the copyright and date there, it's now in the comment block right below it. The text "Copyright" is left in the `#pragma region` line, as clang-format sees it as a single identifier.
I took the opportunity to normalize the dates, and add the copyright notice to the source files where it was missing them (except for third-party and the generated resources.h file).
