Add InDetReadoutGeometry as a GX2F dependency

For future changes, we will need to access header files defined in the
InDetReadoutGeometry to implement hole search. This commit adds the
dependency on that package to the CMake file of the TrkGlobalChi2Fitter.

Tracking/TrkFitter/TrkGlobalChi2Fitter/CMakeLists.txt

@@ -37,6 +37,7 @@ atlas_add_library(
     TrkToolInterfaces
     MagFieldElements
     MagFieldConditions
+    InDetReadoutGeometry
 )
 
 # Component(s) in the package: