[clang-tidy] simplify-bool-expr ignores template instantiations

Ignore template instantiations in the matchers, Addresses [[ https://bugs.llvm.org/show_bug.cgi?id=46226 | readability-simplify-boolean-expr false-positive for bool from template. ]]

Reviewed By: aaron.ballman, lebedev.ri

Differential Revision: https://reviews.llvm.org/D81336