[*] Added submodule libdap.

libdap-qt/libdap-qt.pro

+QT += core network xml
+QT -= gui
+CONFIG += c++11 stl
+
+TARGET = libdap-qt
+
+TEMPLATE = lib
+
+CONFIG +=  create_prl static
+
+include (libdap-qt.pri)
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which as been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+