Add ggplot2 support und bump to v0.2.0

Change-Id: Iee69051bc64fb9fbde55bbea61c7e892ff95229d
diff --git a/DESCRIPTION b/DESCRIPTION
index 278759b..679e432 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: idsThemeR
 Type: Package
 Title: Plot themes for the Leibniz Institute for the German Language (IDS)
-Version: 0.1.0
+Version: 0.2.0
 Authors@R:
     c(person(given = "Marc",
              family = "Kupietz",
@@ -16,7 +16,12 @@
   tidyverse,
   highcharter,
   magrittr,
+  ggthemes,
+  ggplot2,
+  scales,
   RKorAPClient
 Collate:
+  'idsThemeR.R'
   'highcharter-themes.R'
+  'ggplot-theme.R'
 RoxygenNote: 7.1.1