console: Migrate code

Migrate code from header file to cpp-files and
"_code.h"-files.
console: Codestyle improvements

Changes apply to following rules:
1. System includes before local includes
2. Function declaration style: first template,
   then type and then function name + parameters.
   Each in an own line.
renderer/console: Migrate code

Migrate code from header tp cpp-file.
renderer/console: Migrate code
renderer/console: Switch accessor regions

Swap the private region with the public one
according to codestyle.
renderer/console: Excplicit initializer

Add explicit member variable initialization in
constructor. Initialization of these invoke the
parameterless default constructor of their types.