[libcalamares] Move module-related things into subdirectory

- Currently just moves a single enum, but this is prep-work for
   moving the non-GUI parts of the module system into libcalamares,
   to better support GUI-less operation.

src/libcalamares/Settings.h

@@ -23,7 +23,7 @@
 #define SETTINGS_H
 
 #include "DllMacro.h"
-#include "Typedefs.h"
+#include "modulesystem/Actions.h"
 
 #include <QObject>
 #include <QStringList>
@@ -41,7 +41,6 @@ public:
                        QObject* parent = nullptr );
 
     static Settings* instance();
-    //TODO: load from YAML then emit ready
 
     QStringList modulesSearchPaths() const;
 

src/libcalamares/Typedefs.h

@@ -29,12 +29,6 @@ class Job;
 typedef QSharedPointer< Job > job_ptr;
 using JobList = QList< job_ptr >;
 
-enum ModuleAction : char
-{
-    Show,
-    Exec
-};
-
 class ViewStep;
 typedef QList< ViewStep* > ViewStepList;
 

src/libcalamares/modulesystem/Actions.h

@@ -0,0 +1,34 @@
+/* === This file is part of Calamares - <https://github.com/calamares> ===
+ *
+ *   Copyright 2014, Teo Mrnjavac <teo@kde.org>
+ *   Copyright 2019, Adriaan de Groot <groot@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MODULESYSTEM_ACTIONS_H
+#define MODULESYSTEM_ACTIONS_H
+
+namespace Calamares
+{
+
+enum class ModuleAction : char
+{
+    Show,
+    Exec
+};
+
+}  // namespace
+
+#endif

src/libcalamaresui/modulesystem/ModuleManager.cpp

@@ -277,7 +277,7 @@ ModuleManager::loadModules()
 
                 // At this point we most certainly have a pointer to a loaded module in
                 // thisModule. We now need to enqueue jobs info into an EVS.
-                if ( currentAction == Calamares::Exec )
+                if ( currentAction == ModuleAction::Exec )
                 {
                     ExecutionViewStep* evs =
                         qobject_cast< ExecutionViewStep* >(