Implement `Cache` for Enzyme reverse mode

At the moment this seems to break the REPL:

using DifferentiationInterface, DifferentiationInterfaceTest
import DifferentiationInterfaceTest as DIT
using Enzyme: Enzyme

scens = filter(
    s -> (
        DIT.function_place(s) == :out &&
            DIT.operator_place(s) == :in &&
            DIT.operator(s) == :pullback &&
            s.x isa Vector &&
            s.y isa Vector &&
            length(s.x) == 1 &&
            s.tang isa NTuple{2}
    ),
    default_scenarios(;
        include_normal=false, include_constantified=false, include_cachified=true
    ),
)
test_differentiation(AutoEnzyme(; mode=Enzyme.Reverse), scens; logging=true)  # fails

After I run it, the behavior of Julia itself is altered:

julia> a = 1
ERROR: UndefVarError: `get_binding_type` not defined in `Core`
Suggestion: check for spelling errors or missing imports.
Stacktrace:
 [1] top-level scope
   @ ~/Documents/GitHub/Julia/DifferentiationInterface.jl/DifferentiationInterface/test/Back/Enzyme/playground.jl:21

Start with the Enzyme reverse-mode scenario in the reported test_differentiation call and the playground.jl location shown in the stack trace. Reproduce the failure with logging enabled, then verify that the cachified scenario succeeds without leaving Julia's REPL unable to resolve get_binding_type.