Revert "Remove vendored libjuju"

This reverts commit 9d18c22a0dc9e295adda50601fc5e2f45d2c9b8a.

Change-Id: I7dbf291ccd750c5f836ff80c642be492434ab3ac
Signed-off-by: Adam Israel <adam.israel@canonical.com>
diff --git a/modules/libjuju/.gitignore b/modules/libjuju/.gitignore
new file mode 100644
index 0000000..6d00fec
--- /dev/null
+++ b/modules/libjuju/.gitignore
@@ -0,0 +1,15 @@
+*.sw[mnop]
+.venv/
+*.pyc
+*.py~
+docs/_build/
+__pycache__/
+.tox/
+*.egg-info/
+.cache/
+.\#*
+dist/
+dev/
+.pytest_cache
+pytestdebug.log
+.vscode/