BUILD/MEDIUM: deviceatlas: updating the addon part.

- Reflecing the changes done in addons/deviceatlas/Makefile.inc.
 Enabling the cache feature and its disabling option as well.
- Now the `dadwsch` application is part of the API's package for more
general purposes, we remove it.
- Minor and transparent to user changes into da.c's workflow, also
making more noticeable some notices with appropriate logging levels.
- Adding support for the new `deviceatlas-cache-size` config keyword,
 a no-op when the cache support is disabled.
- Adding missing compilation units and relevant api updates to
the dummy library version.

Makefile

@@ -667,28 +667,13 @@ endif
 
 ifneq ($(USE_DEVICEATLAS),)
   # Use DEVICEATLAS_SRC and possibly DEVICEATLAS_INC and DEVICEATLAS_LIB to force path
-  # to DeviceAtlas headers and libraries if needed.
+  # to DeviceAtlas headers and libraries if needed. In this context, DEVICEATLAS_NOCACHE
+  # can be used to disable the cache support if needed (this also removes the necessity of having
+  # a C++ toolchain installed).
   DEVICEATLAS_INC = $(DEVICEATLAS_SRC)
   DEVICEATLAS_LIB = $(DEVICEATLAS_SRC)
-  ifeq ($(DEVICEATLAS_SRC),)
-    DEVICEATLAS_LDFLAGS += -lda
-  else
-    ifeq ($(USE_PCRE),)
-      ifeq ($(USE_PCRE2),)
-        $(error the DeviceAtlas module needs the PCRE or the PCRE2 library in order to compile)
-      endif
-    endif
-    ifneq ($(USE_PCRE2),)
-      DEVICEATLAS_CFLAGS += -DDA_REGEX_HDR=\"dac_pcre2.c\" -DDA_REGEX_TAG=2
-    endif
-    OPTIONS_OBJS += $(DEVICEATLAS_LIB)/Os/daunix.o
-    OPTIONS_OBJS += $(DEVICEATLAS_LIB)/dadwcom.o
-    OPTIONS_OBJS += $(DEVICEATLAS_LIB)/dasch.o
-    OPTIONS_OBJS += $(DEVICEATLAS_LIB)/json.o
-    OPTIONS_OBJS += $(DEVICEATLAS_LIB)/dac.o
-  endif
+  include addons/deviceatlas/Makefile.inc
   OPTIONS_OBJS += addons/deviceatlas/da.o
-  DEVICEATLAS_CFLAGS += $(if $(DEVICEATLAS_INC),-I$(DEVICEATLAS_INC)) $(if $(DEVICEATLAS_SRC),-DDATLAS_DA_NOCACHE)
 endif
 
 # Use 51DEGREES_SRC and possibly 51DEGREES_INC and 51DEGREES_LIB to force path