Added apid_config_sample.yaml and updated gitignore

.gitignore

diff --git a/.gitignore b/.gitignore
index a2bb038..2322be5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,6 @@
 /cmd/apid/apid_config.yaml
 /cmd/apid/apid
 /cmd/apid/vendor
+*.impl
+*.lock
+.idea
\ No newline at end of file

cmd/apid/apid_config_sample.yaml

diff --git a/cmd/apid/apid_config_sample.yaml b/cmd/apid/apid_config_sample.yaml
new file mode 100644
index 0000000..e84051e
--- /dev/null
+++ b/cmd/apid/apid_config_sample.yaml
@@ -0,0 +1,11 @@
+api_port: 9090
+api_expvar_path: nil  # not exposed
+events_buffer_size: 5
+log_level: debug    # valid values: Debug, Info, Warning, Error, Fatal, Panic
+apigeesync_proxy_server_base: http://local.com:9001/edgex
+apigeesync_snapshot_server_base: http://local.com:9001/edgex
+apigeesync_change_server_base: http://local.com:9001/edgex
+apigeesync_snapshot_proto: json
+apigeesync_consumer_key: MDygyE8OD8rlemI7S1XhlUCA7jrarjxl
+apigeesync_consumer_secret: oAuKUqRVvFVq0tzS
+apigeesync_cluster_id: fc0e5137-d3fa-4017-8bfa-86b1103bc85d