Adding .gitignore file.

Updating sky130_fd_sc_lp 0.0.2.

Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>

.gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c6d2e4b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+timing/*.lib