Initial project setup with main modules and utilities

Add main application logic, utility modules for stream and time handling, DRM key fetching, and manifest parsing. Includes example environment file, requirements, .gitignore, and README with project goals and todos.

README.md

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+# OqeeRewind - Oqee TV Live Downloader
+
+## Todo
+- [x] Bruteforce implementation
+- [ ] Better README
+    - [ ] Lib used
+    - [ ] How to use
+    - [ ] Lib to install (pip + mp4ff + ffmpeg) 
+    - [ ] Demo GIF
+- [ ] License
+- [ ] Lint code
+- [ ] Full implementation
+- [ ] Frenc/English full translation
+- [ ] Add more comments in the code
+- [ ] Oqee widevine license implementation (.wvd) + mention README
+- [ ] Better output system
+- [ ] Verify mp4ff installation