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

3.Software/libraries/ArduinoJson/extras/tests/Misc/FloatParts.cpp

@@ -0,0 +1,44 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2023, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson/Numbers/FloatParts.hpp>
+#include <catch.hpp>
+
+using namespace ArduinoJson::detail;
+
+TEST_CASE("FloatParts<double>") {
+  SECTION("1.7976931348623157E+308") {
+    FloatParts<double> parts(1.7976931348623157E+308);
+    REQUIRE(parts.integral == 1);
+    REQUIRE(parts.decimal == 797693135);
+    REQUIRE(parts.decimalPlaces == 9);
+    REQUIRE(parts.exponent == 308);
+  }
+
+  SECTION("4.94065645841247e-324") {
+    FloatParts<double> parts(4.94065645841247e-324);
+    REQUIRE(parts.integral == 4);
+    REQUIRE(parts.decimal == 940656458);
+    REQUIRE(parts.decimalPlaces == 9);
+    REQUIRE(parts.exponent == -324);
+  }
+}
+
+TEST_CASE("FloatParts<float>") {
+  SECTION("3.4E+38") {
+    FloatParts<float> parts(3.4E+38f);
+    REQUIRE(parts.integral == 3);
+    REQUIRE(parts.decimal == 4);
+    REQUIRE(parts.decimalPlaces == 1);
+    REQUIRE(parts.exponent == 38);
+  }
+
+  SECTION("1.17549435e−38") {
+    FloatParts<float> parts(1.17549435e-38f);
+    REQUIRE(parts.integral == 1);
+    REQUIRE(parts.decimal == 175494);
+    REQUIRE(parts.decimalPlaces == 6);
+    REQUIRE(parts.exponent == -38);
+  }
+}