docs: Add Wasm support indication for builtins
docs: Add Wasm support indication for builtins

This change adds a new column to the built-in functions
section to indicate if the built-in function is
natively supported in Wasm.

Signed-off-by: Ashutosh Narkar <334e9094b46d3151817f829cebfa78d0453b0333@gmail.com>

open-policy-agent/opa,tsandall/opa,open-policy-agent/opa,tsandall/opa,tsandall/opa,open-policy-agent/opa,tsandall/opa,tsandall/opa,open-policy-agent/opa,tsandall/opa,open-policy-agent/opa,open-policy-agent/opa