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/JsonDeserializer/misc.cpp

@@ -0,0 +1,117 @@
+// ArduinoJson - https://arduinojson.org
+// Copyright © 2014-2023, Benoit BLANCHON
+// MIT License
+
+#include <ArduinoJson.h>
+#include <catch.hpp>
+
+using namespace Catch::Matchers;
+
+TEST_CASE("deserializeJson(DynamicJsonDocument&)") {
+  DynamicJsonDocument doc(4096);
+
+  SECTION("Edge cases") {
+    SECTION("null char*") {
+      DeserializationError err = deserializeJson(doc, static_cast<char*>(0));
+
+      REQUIRE(err != DeserializationError::Ok);
+    }
+
+    SECTION("null const char*") {
+      DeserializationError err =
+          deserializeJson(doc, static_cast<const char*>(0));
+
+      REQUIRE(err != DeserializationError::Ok);
+    }
+
+    SECTION("Empty input") {
+      DeserializationError err = deserializeJson(doc, "");
+
+      REQUIRE(err == DeserializationError::EmptyInput);
+    }
+
+    SECTION("Only spaces") {
+      DeserializationError err = deserializeJson(doc, "  \t\n\r");
+
+      REQUIRE(err == DeserializationError::EmptyInput);
+    }
+
+    SECTION("issue #628") {
+      DeserializationError err = deserializeJson(doc, "null");
+      REQUIRE(err == DeserializationError::Ok);
+      REQUIRE(doc.is<float>() == false);
+    }
+
+    SECTION("Garbage") {
+      DeserializationError err = deserializeJson(doc, "%*$£¤");
+
+      REQUIRE(err == DeserializationError::InvalidInput);
+    }
+  }
+
+  SECTION("Booleans") {
+    SECTION("True") {
+      DeserializationError err = deserializeJson(doc, "true");
+
+      REQUIRE(err == DeserializationError::Ok);
+      REQUIRE(doc.is<bool>());
+      REQUIRE(doc.as<bool>() == true);
+    }
+
+    SECTION("False") {
+      DeserializationError err = deserializeJson(doc, "false");
+
+      REQUIRE(err == DeserializationError::Ok);
+      REQUIRE(doc.is<bool>());
+      REQUIRE(doc.as<bool>() == false);
+    }
+  }
+
+  SECTION("Premature null-terminator") {
+    SECTION("In escape sequence") {
+      DeserializationError err = deserializeJson(doc, "\"\\");
+
+      REQUIRE(err == DeserializationError::IncompleteInput);
+    }
+
+    SECTION("In double quoted string") {
+      DeserializationError err = deserializeJson(doc, "\"hello");
+
+      REQUIRE(err == DeserializationError::IncompleteInput);
+    }
+
+    SECTION("In single quoted string") {
+      DeserializationError err = deserializeJson(doc, "'hello");
+
+      REQUIRE(err == DeserializationError::IncompleteInput);
+    }
+  }
+
+  SECTION("Premature end of input") {
+    SECTION("In escape sequence") {
+      DeserializationError err = deserializeJson(doc, "\"\\n\"", 2);
+
+      REQUIRE(err == DeserializationError::IncompleteInput);
+    }
+
+    SECTION("In double quoted string") {
+      DeserializationError err = deserializeJson(doc, "\"hello\"", 6);
+
+      REQUIRE(err == DeserializationError::IncompleteInput);
+    }
+
+    SECTION("In single quoted string") {
+      DeserializationError err = deserializeJson(doc, "'hello'", 6);
+
+      REQUIRE(err == DeserializationError::IncompleteInput);
+    }
+  }
+
+  SECTION("Should clear the JsonVariant") {
+    deserializeJson(doc, "[1,2,3]");
+    deserializeJson(doc, "{}");
+
+    REQUIRE(doc.is<JsonObject>());
+    REQUIRE(doc.memoryUsage() == JSON_OBJECT_SIZE(0));
+  }
+}