Issue #130: Fixed support for indenting by tab
Allow indent a block of code by selecting a range of lines
and pressing 'tab'. The behavior implemented is the same as
the one in Sublime Text editor since I found it intuitive enough.
#define RadioOn_width 15
#define RadioOn_height 15
static unsigned char RadioOn_bits[] = {
0xe0, 0x03, 0xf8, 0x0f, 0x1c, 0x1c, 0x0e, 0x38, 0xc6, 0x31, 0xe3, 0x63,
0xf3, 0x67, 0xf3, 0x67, 0xf3, 0x67, 0xe3, 0x63, 0xc6, 0x31, 0x0e, 0x38,
0x1c, 0x1c, 0xf8, 0x0f, 0xe0, 0x03};