intellij: add run configurations for fietsje and gazelle

Test Plan: Did the thing

X-Origin-Diff: phab/D662
GitOrigin-RevId: a2b6da33c09256e78774e83e84972034131fcb77
diff --git a/intellij/run/Run__gazelle.xml b/intellij/run/Run__gazelle.xml
new file mode 100644
index 0000000..31fa1e5
--- /dev/null
+++ b/intellij/run/Run__gazelle.xml
@@ -0,0 +1 @@
+<configuration name="Run :gazelle" type="BlazeCommandRunConfigurationType" factoryName="Bazel Command"><blaze-settings handler-id="BlazeCommandGenericRunConfigurationHandlerProvider" blaze-command="run" kind="sh_binary"><blaze-target>//:gazelle</blaze-target><blaze-user-exe-flag>update</blaze-user-exe-flag></blaze-settings><method v="2"><option name="Blaze.BeforeRunTask" enabled="true" /></method></configuration>
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