added ENC28J60 library

[Arduino] / libraries / UIPEthernet

diff --git a/libraries/UIPEthernet b/libraries/UIPEthernet
new file mode 160000 (submodule)
index 0000000..42e788b
--- /dev/null
+++ b/libraries/UIPEthernet
@@ -0,0 +1 @@
+Subproject commit 42e788b1a49743068cec658b5bb937b29d8d7f30