Initial commit for Plugins

Commits squashed, code style and naming changes by Adam Honse <calcprogrammer1@gmail.com>

PluginManager.cpp

@@ -0,0 +1,45 @@
+#include "PluginManager.h"
+
+void PluginManager::ScanAndLoadPlugins()
+{
+    std::string OpenRGBConfigDir = ResourceManager::get()->GetConfigurationDirectory();
+
+    std::string PluginPath = OpenRGBConfigDir + "/Plugins";
+
+    /*--------------------------------------------------------------------------------------*\
+    | I used https://github.com/krf/cmake-qtqml-plugin-example to figure out how to do this  |
+    | So BIG credit to krf                                                                   |
+    \*--------------------------------------------------------------------------------------*/
+    OpenRGBPluginInterface *OpenRGBPlugin = nullptr;
+
+    const QDir pluginsDir = QString().fromStdString(ResourceManager::get()->GetConfigurationDirectory()) + "plugins/";
+
+    std::vector<std::string> FileList;
+
+    for(int i = 0; i < QDir(pluginsDir).entryList(QDir::Files).size(); i++)
+    {
+        /*--------------------------------------*\
+        | Add all of the Plugin Files to a list  |
+        \*--------------------------------------*/
+        FileList.push_back(QDir(pluginsDir).entryList(QDir::Files)[i].toStdString());
+    }
+
+    for(const std::string &fileName : FileList)
+    {
+        const std::string filePath = pluginsDir.absoluteFilePath(QString().fromStdString(fileName)).toStdString();
+
+        QPluginLoader loader(pluginsDir.absoluteFilePath(QString().fromStdString(fileName)));
+
+        if (QObject *instance = loader.instance())
+        {
+            if ((OpenRGBPlugin = qobject_cast<OpenRGBPluginInterface*>(instance)))
+            {
+                PluginManager::ActivePlugins.push_back(OpenRGBPlugin);
+            }
+        }
+        else
+        {
+            std::cout << loader.errorString().toStdString() << std::endl;
+        }
+    }
+}