Merge topic 'doc-versionadded'

496ec6036f Help: Add Sphinx 'versionadded' directives to each top-level document
0c87afceab Help/dev: Add maintainer guide step for 'versionadded' documentation markup
dbd453c2ff Utilities/Sphinx: Add script for inserting ".. versionadded" directive

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Alex Turbov <i.zaufi@gmail.com>
Merge-request: !4947

Help/command/add_compile_definitions.rst

@@ -1,6 +1,8 @@
 add_compile_definitions
 -----------------------
 
+.. versionadded:: 3.12
+
 Add preprocessor definitions to the compilation of source files.
 
 .. code-block:: cmake

Help/command/add_link_options.rst

@@ -1,6 +1,8 @@
 add_link_options
 ----------------
 
+.. versionadded:: 3.13
+
 Add options to the link step for executable, shared library or module
 library targets in the current directory and below that are added after
 this command is invoked.

Help/command/cmake_language.rst

@@ -1,6 +1,8 @@
 cmake_language
 --------------
 
+.. versionadded:: 3.18
+
 Call meta-operations on CMake commands.
 
 Synopsis

Help/command/cmake_parse_arguments.rst

@@ -1,6 +1,8 @@
 cmake_parse_arguments
 ---------------------
 
+.. versionadded:: 3.5
+
 Parse function or macro arguments.
 
 .. code-block:: cmake

Help/command/continue.rst

@@ -1,6 +1,8 @@
 continue
 --------
 
+.. versionadded:: 3.2
+
 Continue to the top of enclosing foreach or while loop.
 
 .. code-block:: cmake

Help/command/include_guard.rst

@@ -1,6 +1,8 @@
 include_guard
 -------------
 
+.. versionadded:: 3.10
+
 Provides an include guard for the file currently being processed by CMake.
 
 .. code-block:: cmake

Help/command/target_compile_features.rst

@@ -1,6 +1,8 @@
 target_compile_features
 -----------------------
 
+.. versionadded:: 3.1
+
 Add expected compiler features to a target.
 
 .. code-block:: cmake

Help/command/target_link_directories.rst

@@ -1,6 +1,8 @@
 target_link_directories
 -----------------------
 
+.. versionadded:: 3.13
+
 Add link directories to a target.
 
 .. code-block:: cmake

Help/command/target_link_options.rst

@@ -1,6 +1,8 @@
 target_link_options
 -------------------
 
+.. versionadded:: 3.13
+
 Add options to the link step for an executable, shared library or module
 library target.
 

Help/command/target_precompile_headers.rst

@@ -1,6 +1,8 @@
 target_precompile_headers
 -------------------------
 
+.. versionadded:: 3.16
+
 Add a list of header files to precompile.
 
 Precompiling header files can speed up compilation by creating a partially

Help/command/target_sources.rst

@@ -1,6 +1,8 @@
 target_sources
 --------------
 
+.. versionadded:: 3.1
+
 Add sources to a target.
 
 .. code-block:: cmake