adding panel tab and simple transform

[Kuncdesign]

Hi arkypita, I really like your laserGRBL software.
from the beginning of the business and until now I still use your laserGRBL software.
I have never found a problem in using it.
I can solve small problems myself.
but I have hopes:

1. adding features in laserGRBL, so that I can change the shape of the path before I cut it.
   simple feature, simple transform such as:

• flip X,
• Flip Y,
• Rotate 90 degrees, 180 degrees or lasndcape and portrait

2. adding a panel tab that contains:

gCode from the source file. does not include gCode changes from user commands. so that I can recognize which line in the gCode for a particular point