Add a default deploy manifest to the wrapper demos

[namesty]

With the new deployment pipeline, and the addition of a new deploy command, it makes sense to add a default deploy manifest to ease the testing experience for users. We've already added default build and meta manifests to them

[dOrgJelli]

Wrapper templates have been updated:
https://github.com/polywrap/monorepo/tree/origin/packages/templates/wasm