Make matching tolerance adjustable through UI

glyphcollector/backend/src/ImageProcessing/TemplateMatching.hs

Lines 115 to 118 in d6ecd5d

    
           -- the score threshold of 0.95 was determined experimentally 
        
           -- seemed to work well with the image material I used for testing, but might not be optimal for other material 
        
           -- might need to give users the option to customize this 
        
           ixs     = ifoldMono (\ix e -> [ (e, ix) | e > 0.95 ]) result

	-- the score threshold of 0.95 was determined experimentally
	-- seemed to work well with the image material I used for testing, but might not be optimal for other material
	-- might need to give users the option to customize this
	ixs = ifoldMono (\ix e -> [ (e, ix) \| e > 0.95 ]) result