message: dev doc: update eclipse settings
diff: ```
  * C/C++ build ->
  - * Build command: `python3-dbg setup.py -j8` (-j8 for build with 8 concurrent process)
  + * Build command: `python3-dbg setup.py `
  * uncheck Generate makefile automatically
  * set build directory to project root
  - * in Behavior tab change target Build (increamental) from "all" to "build"
  -
  + * in Behavior tab change target Build (increamental) from "all" to "build -j8 --build-type Debug"
  + (-j8 for build with 8 concurrent process)
  * in place debuggin (if you just run `python3 setup.py build` the library with c-extension is not accessible)
  you need to copy or link library to it's package folder
  ```
  