MMdeploy build & install script + prerequisites (#399)

* Initial commit of build script

* Fixed lint

* * Set prefix depending on install arch
* Auto detect installed version of cmake, gcc. Update if necessary
* Prompt to reinstall venv if exists
* Disable .tar packing
* Enable MMDEPLOY SDK Python
* Misc cleanup

* Fixed lint

* Renamed script

* * Set env variables without restarting script.
* OpenCV install optional.
* Fix numpy OPENBLAS_CORETYPE on numpy >1.19.4.
* Remove specific build files.
* Fix prebuild output .tar.gz.
* Comments added. exec bash when closing script

* * Use root dir as MMDeploy dir.
* Use pip3.
* Remove explicit MMDeploy checkout version.
* Use MMDEPLOY_DIR for examples path

* Make PyTorch, torchvision, mmcv install optional

* * Do not deactivate python venv.
* Make prebuild archive optional.
* Add venv* to gitignore

* * Add support for unattended, interactive install. * Cleanup  misc. comments.

* Check input arguments before continuing.

* Added additional log messages, comments added

* Added default option when pressing [ENTER]

* * Rearranged cmake, gcc build/install order.
* Mention default option when reinstalling venv
* sudo make install instead of cmake --install

* Moved script to tools/scripts

* Fixed relative path when generating WORKING_DIR

Author: tehkillerbee

.gitignore

@@ -92,6 +92,7 @@ venv/
 ENV/
 env.bak/
 venv.bak/
+venv*
 
 # Spyder project settings
 .spyderproject