Code formatted (IRMA-LAB#1)

* resolve warning [unused]

* define virtual fun in header

* code beautified

* added virtual destructor

* partially solved warnings (mainly casting)

* added break to avoid fallthrough

DESIRED??

* added src file for ethercatslave

to enhance pure virtual features

* added winch src file to initialize const attributes

* make global var static to reduce scope

* removed using directive

* updated proj file

* increased line width to 90 char

* rearranged tree structure

* added common.h

for common enums and types (WIP)

* massive refactoring according to google style (WIP)

* completing refactoring

+ minor fixed

* rearranged dir tree structure

Update README.md