COSII Lab_8-9

Removed:
COSII\Lab_8-9\BL\CompetitiveNeuronNetwork.cs

Changed:
COSII\Lab_8-9\BL\BL.csproj, COSII\Lab_8-9\BL\KNN.cs - KNN realization syntax changes
COSII\Lab_8-9\Lab9_UI\MainForm.cs, COSII\Lab_8-9\Lab9_UI\MainForm.Designer.cs - added checkBoxes for selection of teaching images