Convert builtin help to reStructuredText source files

Run the convert-help.bash script to convert documentation:

 ./convert-help.bash "/path/to/CMake-build/bin"

Then remove it.

Help/command/create_test_sourcelist.rst

@@ -0,0 +1,30 @@
+create_test_sourcelist
+----------------------
+
+Create a test driver and source list for building test programs.
+
+::
+
+  create_test_sourcelist(sourceListName driverName
+                         test1 test2 test3
+                         EXTRA_INCLUDE include.h
+                         FUNCTION function)
+
+A test driver is a program that links together many small tests into a
+single executable.  This is useful when building static executables
+with large libraries to shrink the total required size.  The list of
+source files needed to build the test driver will be in
+sourceListName.  DriverName is the name of the test driver program.
+The rest of the arguments consist of a list of test source files, can
+be semicolon separated.  Each test source file should have a function
+in it that is the same name as the file with no extension (foo.cxx
+should have int foo(int, char*[]);) DriverName will be able to call
+each of the tests by name on the command line.  If EXTRA_INCLUDE is
+specified, then the next argument is included into the generated file.
+If FUNCTION is specified, then the next argument is taken as a
+function name that is passed a pointer to ac and av.  This can be used
+to add extra command line processing to each test.  The cmake variable
+CMAKE_TESTDRIVER_BEFORE_TESTMAIN can be set to have code that will be
+placed directly before calling the test main function.
+CMAKE_TESTDRIVER_AFTER_TESTMAIN can be set to have code that will be
+placed directly after the call to the test main function.