Add git and docker ignores

.dockerignore

@@ -0,0 +1,17 @@
+node_modules
+.idea
+
+.git
+
+docker/
+!docker/apella-contracts/migrate.sh
+
+packages/*/node_modules
+packages/*/dist
+packages/*/coverage
+# TO-NEVER-DO: exclude the build *folder* from contracts package, it's needed for building the app the JSON contract
+# artifacts can be ignored
+packages/apella-contracts/build/*
+packages/apella-app/build
+
+Jenkinsfile

packages/concordia-app/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*