move sprite and pad into sb namespace

src/Pad.hpp

@@ -16,6 +16,8 @@
 #include "Switch.hpp"
 #include "math.hpp"
 
+namespace sb
+{
     /*!
      * A Pad is an object containing an sb::Plane which can be clicked to launch an arbitrary user function. It can be sized and placed by setting its
      * translation and scale values.
@@ -239,3 +241,4 @@ public:
             return plane.size();
         }
     };
+}

src/Sprite.hpp

@@ -16,6 +16,8 @@
 #include "filesystem.hpp"
 #include "Model.hpp"
 
+namespace sb
+{
     /*!
      * A Sprite is a container for an sb::Plane object that resets and stores scale, translation, and rotation matrices every time they are set
      * and combines them automatically when getting the full transformation. This allows those transformations to be set repeatedly without having
@@ -298,3 +300,4 @@ public:
             return plane.size();
         }
     };
+}