Merge branch 'pull-request/#1024-etl-span-Add-advance(),-copy(),-reinterpret_as()' of https://github.com/ETLCPP/etl into pull-request/#1024-etl-span-Add-advance(),-copy(),-reinterpret_as()

# Conflicts:
#	include/etl/span.h

Author: John Wellbelove

include/etl/span.h

@@ -458,16 +458,6 @@ namespace etl
                                             : etl::span<element_type, etl::dynamic_extent>(pbegin + offset, pbegin + offset + count);
     }
 
-    //*************************************************************************
-    /// Moves the pointer to the first element of the span further by a specified number of elements.
-    ///\tparam elements Number of elements to move forward
-    //*************************************************************************
-    void advance(size_t elements) ETL_NOEXCEPT
-    {
-      elements = etl::min(elements, size());
-      pbegin += elements;
-    }
-
     //*************************************************************************
     /// Reinterpret the span as a span with different element type.
     //*************************************************************************