Cmake,DAPS: Add support for DAPS preprocessing

We add a new extension, .dapss for preprocessable DAPS spec files.
We now run the C preprocessor on the .dapss files to produce
.daps files.

devices/CMakeLists.txt

@@ -0,0 +1,13 @@
+add_subdirectory(bodies)
+
+add_daps_target(all_device_specs
+    SOURCES
+        avia0.dapss
+        win0.dapss
+)
+
+# Register this target for later dependency addition from main CMakeLists.txt
+register_daps_target(all_device_specs)
+# Make the DAPSS target part of the ALL target for this subdirectory
+# This ensures DAPSS targets are built when building just this subdirectory
+set_property(TARGET all_device_specs PROPERTY FOLDER "devices")

devices/bodies/CMakeLists.txt

@@ -0,0 +1,17 @@
+add_daps_target(body_rpi5_persys
+    SOURCES
+        rpi5-persys.dapss
+)
+
+add_daps_target(body_dell_laptop
+	SOURCES
+		dell-laptop.dapss
+)
+
+# Register this target for later dependency addition from main CMakeLists.txt
+register_daps_target(body_rpi5_persys)
+register_daps_target(body_dell_laptop)
+# Make the DAPSS target part of the ALL target for this subdirectory
+# This ensures DAPSS targets are built when building just this subdirectory
+set_property(TARGET body_rpi5_persys PROPERTY FOLDER "devices/bodies")
+set_property(TARGET body_dell_laptop PROPERTY FOLDER "devices/bodies")

devices/bodies/dell-laptop.dapss

@@ -0,0 +1,3 @@
+#include "../win0.dapss"
+||
+#include "../avia0.dapss"

devices/bodies/rpi5-persys.dapss

@@ -0,0 +1,3 @@
+#include "../win0.dapss"
+||
+#include "../avia0.dapss"