feat: print missing dependencies of the dll

[dayfixer]

Description

Windows：when defined DYLIB_PRINT_MISSING before include dylib.hpp, the missing dependecies of the dlll will be printed

test sample:

TEST(open, open_missing_dependecy){
    try {
        dylib lib("./", "opencv_img_hash440");
    }
    catch (const dylib::load_error & error) {
        std::cout << error.what();
        EXPECT_EQ(true, true);
    }
}

1: [==========] Running 1 test from 1 test suite.
1: [----------] Global test environment set-up.
1: [----------] 1 test from open
1: [ RUN      ] open.open_missing_dependecy
1: The specified module could not be found.
1: 
1:   Loaded fail:  (file missing or its dependencies were not found) 
1:     1: opencv_world440.dll
1: [       OK ] open.open_missing_dependecy (3 ms)
1: [----------] 1 test from open (3 ms total)

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (92ab0f3) 100.00% compared to head (9dd9c30) 100.00%. Report is 1 commits behind head on main.

:exclamation: Current head 9dd9c30 differs from pull request most recent head d16798b. Consider uploading reports for the commit d16798b to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #71   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           58        60    +2     
  Branches         3         3           
=========================================
+ Hits            58        60    +2     

Files	Coverage Δ
include/dylib.hpp	100.00% <100.00%> (ø)

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[martin-olivier]

Hello @dayfixer,

Thanks for your PR. I think it could be a good Idea to integrate that by default when an error occurs, without specifying DYLIB_PRINT_MISSING. Also, maybe we could add a depends_on() -> std::vector<std::string> function on windows to be able to collect this data