PluginsList test

still need SWTBot functionalities

Related to issue karlitrotski/CodingSpectator/#35 (test coverage). 
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PluginsList test

Finished. Added some commentaries

Related to issue karlitrotski/CodingSpectator/#35 (test coverage).

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Plugins Monitor test

Still needs SWTBot functionalities

Related to issue karlitrotski/CodingSpectator/#35.
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PluginsMonitor's Test
added some comments and SWTBot functionalities

Related to issue karlitrotski/CodingSpectator/#35 (test coverage).
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Added base class for QuickFix test

 Related to issue karlitrotski/CodingSpectator/#35 (test coverage). 
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Added quickfix test1

Related to issue karlitrotski/CodingSpectator/#35 (test coverage). 
 Pair Programming with @karlitrotski
Added quickfix test2
Related to issue karlitrotski/CodingSpectator/#35 (test coverage). 
 Pair Programming with @karlitrotski
Merge remote-tracking branch 'origin/plugins_test'