Move sectionInfo into sectionEndInfo when SECTION ends

When running `./tests/SelfTest -o /dev/null`, this saves 468
allocations (438907 -> 437439). In general, this saves 1 allocation
every time an entered `SECTION` ends and the section name was long
enough to move out of the SSO buffer.

src/catch2/internal/catch_section.cpp

@@ -25,7 +25,7 @@ namespace Catch {
 
     Section::~Section() {
         if( m_sectionIncluded ) {
-            SectionEndInfo endInfo{ m_info, m_assertions, m_timer.getElapsedSeconds() };
+            SectionEndInfo endInfo{ CATCH_MOVE(m_info), m_assertions, m_timer.getElapsedSeconds() };
             if( uncaught_exceptions() )
                 getResultCapture().sectionEndedEarly( endInfo );
             else