CMakeFile generates StaConfig.hh in source tree instead of build tree

The CMake file in sta generates its config in STA_HOME instead of CMAKE_CURRENT_BINARY_DIR.

Because of that, if cmake is run and then bazel is run, the compiler finds the wrong StaConfig.hh and complains about tclreadline not found (because that is not compiled into the bazel build yet). The bazel build generates its own version, but because the cmake configure creates that in the wrong place, it will mess up things.

So what I believe should be done is:

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -392,7 +392,7 @@ message(STATUS "SSTA: ${SSTA}")
 
 # configure a header file to pass some of the CMake settings
 configure_file(${STA_HOME}/util/StaConfig.hh.cmake
-  ${STA_HOME}/include/sta/StaConfig.hh
+  ${CMAKE_CURRENT_BINARY_DIR}/include/sta/StaConfig.hh
   )
 
 ###########################################################

Start in CMakeLists.txt around the configure_file call near the SSTA status message, and compare the configured header path with CMAKE_CURRENT_BINARY_DIR. Verify that CMake places include/sta/StaConfig.hh in the build tree rather than STA_HOME, then check that running CMake followed by Bazel no longer causes the conflicting header or tclreadline error.