[abscom] Add new port

[RK Riad Khan (rkriad585)]

Add the \�bscom\ port v0.2.6.

About: A C11 library of reusable data structures and a Python-inspired dynamic runtime (dynamic arrays, strings, hashmaps, matrices, ML, data frames, WebSockets, crypto, and more).

Verification: Built and tested locally with the x64-mingw-static and x64-mingw-dynamic triplets; \�cpkg install\ succeeds and installs the CMake config + pkg-config files.

[RK Riad Khan (rkriad585)]

@microsoft-github-policy-service agree

[Billy O'Neal (BillyONeal)]

Hi there! Can you fill out the new port checklist then mark "ready for review"? Seems like that this is mergable but I'm not positive in particular about naming

vcpkg/.github/pull_request_template.md

Lines 19 to 35 in 4fa1417

	- [ ] Changes comply with the [maintainer guide](https://github.com/microsoft/vcpkg-docs/blob/main/vcpkg/contributing/maintainer-guide.md).
	- [ ] The packaged project is [mature and ready for broad sharing with vcpkg users](https://learn.microsoft.com/vcpkg/contributing/maintainer-guide#packaged-projects-should-be-mature)
	- [ ] Has a release at least 6 months old or 6 months of demonstrated public development
	- [ ] Is an official component of something else meeting that criteria
	- [ ] Some other reason (please explain)
	- [ ] The packaged project shows strong association with the chosen port name. Check this box if at least one of the following criteria is met:
	- [ ] The project is in Repology: https://repology.org/project/<PORT NAME>/versions
	- [ ] The project is amongst the first web search results for "<PORT NAME>" or "<PORT NAME> C++". Include a screenshot of the search engine results in the PR.
	- [ ] The port name follows the 'GitHubOrg-GitHubRepo' form or equivalent `Owner-Project` form.
	- [ ] Optional dependencies of the build are all controlled by the port. A dependency is controlled if it is declared an unconditional dependency in `vcpkg.json`, or explicitly disabled through patches or build system arguments such as [CMAKE_DISABLE_FIND_PACKAGE_Xxx](https://cmake.org/cmake/help/latest/variable/CMAKE_DISABLE_FIND_PACKAGE_PackageName.html) or [VCPKG_LOCK_FIND_PACKAGE](https://learn.microsoft.com/vcpkg/users/buildsystems/cmake-integration#vcpkg_lock_find_package_pkg)
	- [ ] The versioning scheme in `vcpkg.json` matches what upstream says.
	- [ ] The license declaration in `vcpkg.json` matches what upstream says.
	- [ ] The installed as the "copyright" file matches what upstream says.
	- [ ] The source code of the component installed comes from an authoritative source.
	- [ ] The generated "usage text" is brief and accurate. See [adding-usage](https://github.com/microsoft/vcpkg-docs/blob/main/vcpkg/examples/adding-usage.md) for context. Don't add a usage file if the automatically generated usage is correct.
	- [ ] The version database is fixed by rerunning `./vcpkg x-add-version --all` and committing the result.
	- [ ] Exactly one version is added in each modified versions file.