Single Hpp File - v.10.9.0

• Breaking changes
  • None
• New features
  • Custom template namer: see TemplatedCustomNamer. (#149)
    • This gives great flexibility
    • It also introduces the ability to run Approval Tests on machines that do not have the source code, such as when doing cross-compilation.
  • Options.withNamer(): Options now has the ability to specify a custom namer.
  • New Path utility class: see Path.h and Path.cpp
• Bug fixes
  • Calls to Approvals::verify() and related methods no longer spuriously pass if the received and approved
    filenames are identical (#178)
  • TextDiffReporter no longer throws when reporting that files differ.
    • This improves the content of logs when running Approval Tests in CI builds. (#106)
  • ApprovalTests.cpp's tests and examples should now never be built when used as a sub-project. (#179)
• Other changes
  • Added new documentation sections:
    • Code to copy for your first Boost.Test Approvals test
    • Code to copy for your first Catch2 Approvals test
    • Code to copy for your first CppUTest Approvals test
    • Code to copy for your first doctest Approvals test
    • Code to copy for your first Google Test Approvals test
    • Code to copy for your first [Boost].UT Approvals test
  • Removed CI builds for clang and gcc < v9
  • Some of our internal tests now use gulrak's filesystem. Thanks @gulrak!