CppTools: Update known qdoc commands

...from http://doc-snapshots.qt.io/qt5-5.7/27-qdoc-commands-alphabetical.html

/*!
 * New qdoc that are highlighted and completed:
 * \annotatedlist
 * \default
 * \div
 * \inherits
 * \inqmlmodule
 * \instantiates
 * \noautolist
 * \qmlabstract
 * \qmlattachedproperty
 * \qmlattachedsignal
 * \qmlbasictype
 * \qmlclass
 * \qmlmethod
 * \qmlmodule
 * \qmlproperty
 * \qmlsignal
 * \qmltype
 * \span
 * \uicontrol
 */

Change-Id: I55b8e83814a6008b6580a6e50ca780b257d4197b
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/cpptools/cppdoxygen.kwgen

@@ -9,6 +9,7 @@ abstract
 addindex
 addtogroup
 anchor
+annotatedlist
 arg
 attention
 author
@@ -32,8 +33,10 @@ copydoc
 corelib
 date
 def
+default
 defgroup
 deprecated
+div
 dontinclude
 dot
 dotfile
@@ -94,9 +97,12 @@ index
 indexpage
 ingroup
 inheaderfile
+inherits
 inlineimage
 inmodule
 inpublicgroup
+inqmlmodule
+instantiates
 interface
 internal
 invariant
@@ -120,6 +126,7 @@ namespace
 network
 newcode
 nextpage
+noautolist
 nonreentrant
 nosubgrouping
 note
@@ -146,6 +153,16 @@ printline
 printto
 printuntil
 property
+qmlabstract
+qmlattachedproperty
+qmlattachedsignal
+qmlbasictype
+qmlclass
+qmlmethod
+qmlmodule
+qmlproperty
+qmlsignal
+qmltype
 qt3support
 qtestlib
 quotation
@@ -180,6 +197,7 @@ skipline
 skipto
 skipuntil
 snippet
+span
 sql
 startpage
 struct
@@ -200,6 +218,7 @@ title
 todo
 tt
 typedef
+uicontrol
 uitools
 underline
 unicode