[ormpp] Add ormpp port

[cuihairu]

Add ormpp port (modern C++ ORM library)

ormpp

ormpp is a modern C++ ORM library supporting MySQL, PostgreSQL, and SQLite.
It is a header-only library that includes iguana (serialization library) and
frozen (compile-time containers) as bundled dependencies.

• Version: 0.2.0
• License: Apache-2.0
• Homepage: https://github.com/qicosmos/ormpp
• Supported platforms: linux | osx | (windows & !uwp)

Checklist

• Changes comply with the [maintainer guide](https://github.com/microsoft/vcpkg-docs/bl
  ob/main/vcpkg/contributing/maintainer-guide.md)
• The name of the port matches an existing name for this component on
  https://repology.org/ if possible
• Optional dependencies are resolved in exactly one way
• The versioning scheme in vcpkg.json matches what upstream says
• The license declaration in vcpkg.json matches what upstream says
• The installed "copyright" file matches what upstream says
• The source code of the component installed comes from an authoritative source
• The generated "usage text" is accurate
• The version database is fixed by rerunning ./vcpkg x-add-version --all
• Only one version is in the new port's versions file

[vicroms]

We have ports for iguana and frozen, this port should depend on those ports rather than installing conflicting files.