Graphics (chart with series) improvements, GUI changes and other.

Graphics changes:
Scaling - in progress...
Added Color_generator class, which can generate random color,

analyse it's brightness, and generate more comfortable color for

series on chart.
Custom generated color are giving to each added series.
Added Analog_parameter structure, which contains analog parameter

data, info and settings.
3 random series are adding to chart at every program launch.

GUI changes:
Added 'Uncheck all' button, which deletes all series.
Added 'Add random' button, which adds random series to chart.
Improved titles of grids.
Improved memos sizes;
Constraints for checkListChannel are dynamically calculating.
Chart's bottom panel are dynamically resizing.
OpenFile panel's captions now contain short path to file (that

fits to window width).
Functions for showing messages can recieve UnicodeString as well

as standard string.
Root directory for open file dialog changed to current (default)

program folder.

Other changes:
Corrected Int to String convertion, conversions between standard

and unicode strings.
Randomizer starts at program's launch.
checkListChannelClickCheck function refactored and optimized.
Corrected some gramatic errors in texts.

DON'T DO THIS:
Don't make program remember last added series to chart at it's

start!
Auto Scale must always ON at start!
Don't store path to file in panel caption.