cmake: Set top-level target output locations

This change:
1. Collects build artifacts in dedicated locations.
2. Allows running bitcoin-chainstate.exe with bitcoinkernel.dll directly
from the build tree on Windows.

CMakeLists.txt

@@ -609,9 +609,6 @@ endif()
 add_subdirectory(test)
 add_subdirectory(doc)
 
-include(cmake/crc32c.cmake)
-include(cmake/leveldb.cmake)
-include(cmake/minisketch.cmake)
 add_subdirectory(src)
 
 include(cmake/tests.cmake)