Add missing __has_controljac function definition

Fixes issue #1105 where ODEInputFunction constructor fails with default
controljac parameter because __has_controljac function was not defined.

Added __has_controljac(f) = hasfield(typeof(f), :controljac) alongside
other similar utility functions in scimlfunctions.jl.

This follows the same pattern as other __has_* functions in the codebase
and allows ODEInputFunction to properly check for controljac field presence.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: ChrisRackauckas

src/scimlfunctions.jl

@@ -4948,6 +4948,7 @@ __has_Wfact(f) = hasfield(typeof(f), :Wfact)
 __has_Wfact_t(f) = hasfield(typeof(f), :Wfact_t)
 __has_W_prototype(f) = hasfield(typeof(f), :W_prototype)
 __has_paramjac(f) = hasfield(typeof(f), :paramjac)
+__has_controljac(f) = hasfield(typeof(f), :controljac)
 __has_jac_prototype(f) = hasfield(typeof(f), :jac_prototype)
 __has_controljac_prototype(f) = hasfield(typeof(f), :controljac_prototype)
 __has_sparsity(f) = hasfield(typeof(f), :sparsity)