Let vcpkg install check only the relevant ports instead of all

[playgithub]

---

Problem

e.g.

1. private port "libabc" in git branch branch-abc
2. git switch branch-abc
3. vcpkg install libabc
4. git switch master
5. vcpkg install zlib, error as below

   Computing installation plan...
   Error: while loading libabc:
   The port directory (<vcpkg-root>\ports\libabc) does not exist
   Error: failed to load port from <vcpkg-root>\ports\libabc
   note: updating vcpkg by rerunning bootstrap-vcpkg may resolve this failure.

Proposed solution
vcpkg install checks only relevant ports.

If vcpkg install check all ports, it'll be less convenient when do PR in a new branch, because when testing, the same error above will occur. There are solutions, but not necessary when vcpkg install check only relevant ports.

Additional context
#24259

[Neumann-A]

this is a duplicate of another issue. Unable to find it currently.

[JackBoosY]

The reason for this issue is that we need to first analyze all ports and build a dependency graph, and judge the installation order according to the graph.

[dg0yt]

The reason for this issue is that we need to first analyze all ports and build a dependency graph, and judge the installation order according to the graph.

Right, vcpkg must at least know when to remove an orphan port due to removed dependencies. And without the build recipe, the port would also block upgrades.
But at least some operations could continue. Installing an independent port might work as well as does removing the orphan port.

[playgithub]

The reason for this issue is that we need to first analyze all ports and build a dependency graph, and judge the installation order according to the graph.

What about ignore the missing libs when building the dependency graph?

[Neumann-A]

Feel free to comment on microsoft/vcpkg-tool#516

[Neumann-A]

duplicate to #15836