git: add generated CLion files to gitignore (#6195)
git: add generated CLion files to gitignore (#6195)

Signed-off-by: Christopher M. Luciano <6a3ee4b7e940bce72c1857de462f1d5fc92fcd3d@us.ibm.com>
envoyproxy/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,lyft/envoy,lyft/envoy,envoyproxy/envoy,dnoe/envoy,envoyproxy/envoy,envoyproxy/envoy,istio/envoy,istio/envoy,jrajahalme/envoy,eklitzke/envoy,envoyproxy/envoy-wasm,lyft/envoy,dnoe/envoy,jrajahalme/envoy,jrajahalme/envoy,eklitzke/envoy,istio/envoy,lizan/envoy,envoyproxy/envoy,eklitzke/envoy,lizan/envoy,dnoe/envoy,dnoe/envoy,jrajahalme/envoy,dnoe/envoy,eklitzke/envoy,istio/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,envoyproxy/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,eklitzke/envoy,jrajahalme/envoy,istio/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,envoyproxy/envoy,lyft/envoy,eklitzke/envoy,envoyproxy/envoy-wasm,istio/envoy,lizan/envoy,lyft/envoy,envoyproxy/envoy,lyft/envoy,lizan/envoy,lizan/envoy,jrajahalme/envoy,istio/envoy