Legend and Color Scale improvements

Legend text follow legend symbol color. Also works for color scale.	show color scale as blocks of colors and their corresponding range
ORG-11816	ORG-10371
right click legend to enable object property. Setting color to Auto will have the color of the label follow the color of the symbol. This is also support for regular text label. If there is %(n) substitution notation(s) and color is set to Auto, it will use the 1st substitution notation's corresponding plot's color for the whole text Also works for color scale label	In the Color Scale Control dialog, we can change the display format of the labels from just showing a value to showing a range. (see the result) 2. Allow color bar to be separated. 3. the result：
Notation to Alignment different portions of text in multiple line
ORG-12357
add "\^()" as cell anchor, use alignment from the whole text object "\^(l)", "\^(c)", "\^(r)" are LEFT, CENTER and RIGHT alignment respectively. "^(lu)" means the text before and after this anchor is a unit, the part before and the part after will not be added extra space by drag and control. But the part before and after "^(lu)" will still consider the alignment separately, like it contain 2nd level.