Use native binaries when version exactly matches user input

[shenxianpeng]

Ready to release v0.6.0.

[2bndy5]

Oh, the CI is failing because it calls clang-*-12.0.1 expecting to execute the clang binary for v12.0.1.

[codecov-commenter]

Codecov Report

Merging #33 (251278a) into main (5a1cae0) will decrease coverage by 5.85%.
The diff coverage is 65.71%.

@@            Coverage Diff             @@
##             main      #33      +/-   ##
==========================================
- Coverage   93.57%   87.71%   -5.86%     
==========================================
  Files           4        4              
  Lines         140      171      +31     
==========================================
+ Hits          131      150      +19     
- Misses          9       21      +12     

Impacted Files	Coverage Δ
clang_tools/install.py	82.69% <65.71%> (-9.09%)	⬇️

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[2bndy5]

I guess the unit test could be added later, but it would go against having unit tests to begin with.

I should apologize. Lately, I haven't been moving as fast as you might be used to for this project, but I have other projects that I'm trying to pursue. If you're uncomfortable working on my branch, then you could create a branch from this one and implement fixes/tests there. I'm ok with you pushing things to my branch because I've gotten used to git noobs high-jacking my branches...

[shenxianpeng]

We could add unit tests and fix CI failures later. We can keep this branch to support choco on Windows later.

It doesn't matter, take your time, this PR is all your contribution, I really really appreciate it. Actually, I'm sorry I haven't contributed much lately because I'm busy with my family, I'll try my best to respond quickly.

[2bndy5]

I just pushed a commit that should fix the CI by using strict version checking. So, -i 12 will look for v12.0.0, and -i 12.0.1 will look for v12.0.1, etc.

coverage took a -6% hit, so adding a new unit test would be good to bring that back over 90%... I agree we can do that later.