feat(intent): render svm acc for fis input

[vinhphuctadang]

Context

Drift intent solver needs input of PDA but we can't let user inject it in input as it's so complex
=> This PR supports calculating svm PDA in the background, base on const vars and input.
Now it's using handlebar, a logic-less render library, schema looks like

{{pda "user" (decodeBase58 taker_svm_address) "\0\0" "FLR3mfYrMZUnhqEadNJVwjUhjX8ky9vE9qTtDmkK4vwC"}}

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Actually I considered eval() and some logic-less rendering.
Eval is more advanced, flexible but it allows some unsafe function access that can steal user info from webpage, access to network or something else, so I go with logic-less well-known handlebar lib for now

We can consider adding more flexible schema as we go

After this we will have PR for astromesh app: https://github.com/FluxAstromeshLabs/flux-astromesh/pull/62/files