Add sections for packages

Packages.md

@@ -0,0 +1,9 @@
+# Packages
+
+The library contains the following packages:
+- [common](common/Home.md)
+- [base](base/Home.md)
+- [os](os/Home.md)
+- [prng](prng/Home.md)
+- [uuid](uuid/Home.md)
+- [testing](testing/Home.md)

_Sidebar.md

@@ -1 +1,8 @@
 [Home](Home.md)
+[Packages](Packages.md)
+    - [common](common/Home.md)
+    - [base](base/Home.md)
+    - [os](os/Home.md)
+    - [prng](prng/Home.md)
+    - [uuid](uuid/Home.md)
+    - [testing](testing/Home.md)