Hardware Management, Metrics, PWM/GPIO support. (#12)

* [Server] Hardware Management

* [Server] Hardware Management

* [Server] Hardware Management

* [Server] Hardware Management

* [Server] Hardware Management

* [Server] Hardware Management

* Added metricsPublisher

* [Server] Hardware Management

* [Server] Hardware Management

* Fill in HardwareConfig, allow JSON Comments

* Use hardware config

* [Hardware Management] Use Hardware Config

* [Hardware Management] Use softPWM for dimming

* [Hardware] Added HardwareConfig Test

* [Hardware] Started HardwareManager

* Start metrics thread in hardwareManager

* [Hardware] Added Hardware Manager Test

* [Hardware] Spotless

* [Hardware] Added logging, cleaned up HardwareConfig

* [Hardware] Added logging to PWM class

* [Hardware] Rebase off master, fix merge conflicts

* [Hardware] Ignore metrics commands if on pi

* [Hardware] Remove GPIO provision after shutdown

* [Hardware] Switch over to diozero

* [Hardware] Use broadcom pins

* [Hardware] Fix PWM port

* [Hardware] Use jpi instead of pigpio

* [Hardware] Use dizero-core

* [Hardware] No need to close LED

* [Hardware] Switch to jpigpio

* [Hardware] Initalize JPiGPIO in unit tests

* [Hardware] Use dutyCycle for LED dimming

* [Hardware] Add blink test to HardwareManager

* [Hardware] Fix PWM port

* [Hardware] Fix HardwareManagerTest

* [Hardware] Fix HardwareManagerTest

* [Hardware] Use waves for LED blinking

* [Hardware] Make blinking part of PWM

* [Hardware] Add API methods to hardware Manager

* [Hardware] Only start pigpio if on pi

* [Hardware] Merge PWM classes into GPIO

* [Hardware] Add Hardware stuff to VisionModules

* [Hardware] Remove random semicolon

Co-authored-by: Banks Troutman <btrout.dhrs@gmail.com>

photon-server/src/test/resources/hardware/HardwareConfig.json

@@ -0,0 +1,23 @@
+{
+  "deviceName": "PhotonVision",
+  "deviceLogoPath": "photonvision.png",
+  "supportURL": "https://support.photonvision.com",
+  "hardware": {
+    "leds": [2,13],
+    "ledSetCommand": "",
+    "ledsCanDim": true,
+    "ledPWMRange": [0, 100],
+    "ledPWMSetRange": "",
+    "ledDimCommand": "",
+    "ledBlinkCommand": ""
+  },
+
+  "metrics": {
+    "cpuTemp": "echo 10",
+    "cpuMemory": "echo 10",
+    "cpuUtil": "echo 10",
+    "gpuMemory": "echo 10",
+    "gpuUtil": "echo 10",
+    "ramUtil": "echo 10"
+  }
+}