Add PlatformIO project setup, local libraries, and PCB Gerber files

- Add platformio.ini for ESP32 DevKit (Arduino framework, espressif32 6.10.0)
- Vendor ArduinoJson, MPU6050_tockn, SCServo, Simple_FOC, and WebSockets
  so a fresh clone builds without downloading dependencies
- Add .gitignore rules for PlatformIO/IDE build artifacts
- Add controller PCB Gerber and drill files

2.Hardware/1.ControllerPCB/Gerber_PCB_Controller/Drill_NPTH_Through.DRL

@@ -0,0 +1,21 @@
+M48
+INCH,LZ
+;FILE_FORMAT=2:4
+;TYPE=NON_PLATED
+;Layer: NPTH_Through
+;EasyEDA v6.5.34, 2024-08-17 15:38:32
+;e9d0264aabc6452cba86d3840bb8e9fd,9f2f25eebc5e4964923e048cec00becc,10
+;Gerber Generator version 0.2
+;Holesize 1 = 0.0790 inch
+T01C0.0790
+%
+G05
+G90
+T01
+X005900Y011074
+X-005911Y011074
+X-005911Y011074
+X005900Y011074
+X009837Y-008218
+X-009848Y-008218
+M30