Add sorted_string_map with some basic test.
Write about the new structure.
Fix the versioning.

I think the next one should be 0.11.0 because of the addition of the
new structure...
Add shrink_to_fit() method to multi_type_vector.
Fix a double-free situation in swap().
Test another branch with managed block.  It passes.
Add sorted_string_map test file to the visual studio solution.
Throw a better exception message when a block position search fails.
Set the version to 0.11.0.
Add test executable for sorted_string_map to make check list.
Add performance measurement test file for sorted_string_map.
coverity#59686 Assign instead of compare
coverity#59690 Not restoring ostream format
coverity#59681 Side effect in assertion
coverity#59711 Uncaught exception
coverity#54466 Uninitialized pointer field
coverity#54432 Uninitialized scalar field
coverity#59706 Structurally dead code

just rework to avoid warning
coverity#59709: Uninitialized scalar fields.
coverity#59687 silence false-positive Arguments in wrong order