Add cmake option to compile library in shared or static

[Alex-PLACET]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.67%. Comparing base (bf3a430) to head (18eb394).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #358   +/-   ##
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  Coverage   89.67%   89.67%           
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  Files          88       88           
  Lines        6622     6622           
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  Hits         5938     5938           
  Misses        684      684           

Flag	Coverage Δ
unittests	89.67% <ø> (ø)

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[JohanMabille]

The name of the static library and dynamic library on Windows should be different, otherwise it is impossible to build both of them at the same time.

EDIT: if this is urgent for the conan recipe, this can be done in a future PR, no need to block this one. There won't be any issue on Windows since the stati and dynamic builds are exclusive.

[JohanMabille]

Why making the static and dynamic builds exclusive?

[Alex-PLACET]

@JohanMabille #359

[SylvainCorlay]

I think that SPARROW_BUILD_SHARED and SPARROW_BUILD_STATIC should be settable independently.