Windows sdk autodetection

[shagren]

Some magic for windows users

I have tested only for my configuration. Haven't any idea will it work on x32 or with custom SDK location.

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[lpasselin]

Thanks a lot, this will reduce the windows issues we receive by a lot.
I will add a few minor changes like logging and merge this in the next week.

[lpasselin]

Changes I made:

• rename .loader to .module
• refactor and created the file win32_utils
• added env variable K4A_DLL_DIR to directly specify where k4a.dll is.
• detect starting from %ProgramFiles% or %PROGRAMFILES% (PROGRAMFILES seems to be windows 10)
• more information on raise ImportError
• edit readme

@shagren I could not test the changes since I don't have a windows system anymore. Would you mind doing a quick test on your side?

[shagren]

Minor fix and ow is ok:

(venv) C:\Users\altis\PycharmProjects\test\pyk4a>pip install git+https://github.com/shagren/pyk4a@windows-sdk-autodetection
Collecting git+https://github.com/shagren/pyk4a@windows-sdk-autodetection
  Cloning https://github.com/shagren/pyk4a (to revision windows-sdk-autodetection) to c:\users\altis\appdata\local\temp\pip-req-build-ocn8bfo9
  Running command git clone -q https://github.com/shagren/pyk4a 'C:\Users\altis\AppData\Local\Temp\pip-req-build-ocn8bfo9'
  Running command git checkout -b windows-sdk-autodetection --track origin/windows-sdk-autodetection
  Branch 'windows-sdk-autodetection' set up to track remote branch 'windows-sdk-autodetection' from 'origin'.
  Switched to a new branch 'windows-sdk-autodetection'
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... done
Requirement already satisfied: numpy in c:\users\altis\pycharmprojects\test\venv\lib\site-packages (from pyk4a==1.2.5) (1.21.0)
Requirement already satisfied: python-version>="3.4" in c:\users\altis\pycharmprojects\test\venv\lib\site-packages (from pyk4a==1.2.5) (0.0.2)
Building wheels for collected packages: pyk4a
  Building wheel for pyk4a (PEP 517) ... done
  Created wheel for pyk4a: filename=pyk4a-1.2.5-cp38-cp38-win_amd64.whl size=33569 sha256=71ae04b92d4ff90a8647ab141ea07cf23138ccfd33279e365b9b0
f87e7530379
  Stored in directory: C:\Users\altis\AppData\Local\Temp\pip-ephem-wheel-cache-u_bccl1v\wheels\bd\23\e5\fff733384f10e40c4b088351feb0002fcf6e972
c35cc3b6b2e
Successfully built pyk4a
Installing collected packages: pyk4a
Successfully installed pyk4a-1.2.5

(venv) C:\Users\altis\PycharmProjects\test\pyk4a>python -c "import pyk4a; device=pyk4a.PyK4A();device.open();device.start(); print(device.get_c
apture().color.shape)"
(720, 1280, 4)