Adjust status bar to support alpha color

[testwind]

User can set alpha value ( 0 -255) for status bar text and background color. With this function , we can read in full screen and see the status bar information in transparent color

[testwind]

[testwind]

Enhance tap zone: Define the page-turning function for the four corners of the screen

[acewind1]

Modify some SVG image files

Avoid warning:

• Use 0.5 instead of .5 to avoid crashes on some device
• Avoid scientific notation (4.04e-4) in vector paths because it can lead to crashes on some devices. Use 0.000404 instead.

[foobnix]

Sorry, I can't add so many changes to the project

[DeanLemans]

damn, i quite liked the change.

[testwind]

@DeanLemans do you need these funtions ? I can do these again , if @foobnix can accpet. them. I can split to several pull requets .

[foobnix]

I can split to several pull requets

Please split the features so we can test each one thoroughly and independently.