deploy: exclude more files from being deployed

These files are not needed for the Azure Function to do its job, and
only add unnecessary churn to the deployments, so let's skip them.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

.funcignore

@@ -1,5 +1,9 @@
 /.*
+/*.config.js
 /*.md
 /*.gif
+/*.svg
 /host.json
 /local.settings.json
+/package*.json
+/test-*.js