Basic string view support#2

Draft

jason-ha wants to merge 13 commits intowin32_narrow_stringsfrom

basic_string_view_support

Commits on Aug 1, 2019

Add CPPREST_USE_STRING_VIEWS option to accept string_views as input
jason-ha
committed
Specify pipeline build options for CPPREST_USE_STRING_VIEWS
jason-ha
committed

Commits on Aug 3, 2019

Commits on Aug 5, 2019

alternate MSVC warning suppression
jason-ha
committed

Commits on Aug 23, 2019

remove CPPREST_FORCE_NARROW_STRINGS option
jason-ha
committed

Commits on Aug 26, 2019

Commits on Aug 28, 2019

Commits on Feb 13, 2020