Refactoring.

* Fixed some problems with build due to the symbol redefinitions (It's
  still need to be reviewed and we need to find a better way for doing
  this);
* Added plugin properties in the configuration and adding the
  possibility to change it on the fly (still WIP);
* Added visual component to select the appropriate tab in the plugin
  configuration;
* Some cleanup;

* Added template file for the RecordEngine plugin type.
* Changed a bit structure of other plugin template files.
* Added missing functions for some plugin template files.
* Fixed some bugs with OpenEphysLib.cpp file template.
* Typos fixed.

folder.

* Added template files for FileSource and DataThread plugin types.
* Minor stylystic fixes and refactoring for some FileSource plugins.

* Refactoring and stylystic fixes of RecordEngine class (and one
  dependency).
* Refactoring and stylystic fixes of DataThread class and all
  appropriate dependent classes.

* Added possibility to select and generate the plugins of appropriate
  available types (Processor, RecordEngine, DataThread, FileSource).
  Now it's only generates appropriate lib files and selects some types
  in processor. However, we should generate different processor files
  for each plugin type later.
* Added possibility to select processor type;
* Some refactoring of existing code and minor fixes;
* Still needs some refactoring of newer code with some improvements.

* Refactoring applied mostly because we need to satisfy the new state
  of GenericProcessor after refactoring;
* Also there were a lot of stylystic fixes applied, some minor
  improvements using C++11.

* Appropriate dependencies also have been changed.

Back merging master changes into testing

* Now the plugin will be displayed with friendly name in the GUI;
* Hided some future functionality which is WIP now in
  jucer_ProjectType.h file.

* Basic implemntation of Open Ephys Plugin Generator.
  Now it generates empty processor & editor. To compile plugin with
  current plugin build systems we just need to copy "Source" folder
  of our plugin into plugin-GUI/Source/Plugins/ and give it some
  valuable name.
* ExampleProcessor, ExampleEditor classes refactoring and stylystic
  fixes.

Create NN_4s2tt_config.xml

Neuronexus 4 shank 2 tetrode silicon probe map

* All modules are replaced with the JUCE 4.2.1 ones;
* Introjucer was replaced by Projucer;
* Also some appropriate needed fixes for Makefile.plugins;
* Removed -fvisibility=hidden flag for Linux building.

ChannelSelector improvements.

* Updated images for collapse/show button;
* Updated animations;
* Some other small UI improvements;
* Added possibility to collapse element by clicking "ESC" key
  either on the component itself or on the TextEditor.