Microwave Radar PCB fixes

[bradjc]

• Hole sizes too small for radar module
• TX/RX silkscreen backwards
• PCB board name label too small
• MSGEQ7 schematic
• SAM4L switching power supply doesn't work

[ppannuto]

• Module silkscreen for I2C_C runs into the pin and cuts off, hard to read difference from I2C_D. Change to SCL and SDA.

[bradjc]

Also need to fix the false positive issue, where there is noise (or something) on the IF pin and that leads to motion detection when nothing is happening.

[ppannuto]

• Check that caps are on VDDCORE not VDDOUT

[adkinsjd]

Fix the damn microwave radar hole sizes