add HGQ to optional dependency

Author: calad0i

setup.cfg

@@ -41,6 +41,8 @@ pytest_randomly.random_seeder =
     hls4ml = hls4ml:reseed
 
 [options.extras_require]
+HGQ =
+    HGQ~=0.2.0
 optimization =
     keras-tuner==1.1.3
     ortools==9.4.1874
@@ -52,6 +54,7 @@ profiling =
 sr =
     sympy
 testing =
+    HGQ~=0.2.0
     pytest
     pytest-cov
     pytest-randomly