Added netlify.toml and runtime.txt

runtime.txt sets env to Python 2.7
netlify.toml specifies the build command (fetch the JAR and run the generator.py script) and publish directory

Author: SableRaf

netlify.toml

@@ -0,0 +1,3 @@
+[build]
+  publish = "generated"
+  command = "bash -c './fetch_processing_jar.sh && python generator.py build --all --images'"

runtime.txt

@@ -0,0 +1 @@
+python-2.7