Replace MMAL driver with Libcamera (#491)

Co-authored-by: Chris Gerth <gerth2@users.noreply.github.com>

photon-client/src/views/CamerasView.vue

@@ -218,6 +218,17 @@
                   tooltip="Enables or Disables camera automatic adjustment for current lighting conditions"
                   @input="e => handlePipelineUpdate('cameraAutoExposure', e)"
                 />
+                <CVslider
+                  v-if="cameraGain >= 0"
+                  v-model="cameraGain"
+                  name="Camera Gain"
+                  min="0"
+                  max="100"
+                  tooltip="Controls camera gain, similar to brightness"
+                  :slider-cols="largeBox"
+                  @input="handlePipelineData('cameraGain')"
+                  @rollback="e => rollback('cameraGain', e)"
+                />
                 <CVslider
                   v-if="$store.getters.currentPipelineSettings.cameraRedGain !== -1"
                   v-model="$store.getters.currentPipelineSettings.cameraRedGain"
@@ -410,6 +421,15 @@ export default {
             }
         },
 
+        cameraGain: {
+          get() {
+              return parseInt(this.$store.getters.currentPipelineSettings.cameraGain)
+          },
+          set(val) {
+              this.$store.commit("mutatePipeline", {"cameraGain": parseInt(val)});
+          }
+        },
+
         // Makes sure there's only one entry per resolution
         filteredResolutionList: {
             get() {