Add support for Async local storage to access the HTTP context

• feat: add HttpContext.runOutsideContext method 6f42c1c
• refactor: restructuring the API to be more descriptive (#42) 292b8e1
• chore: update dependencies 1eec4ac
• ci: remove appveyor config file 867afa9
• ci: remove appveyor in favor of gh actions a653e2b
• chore: update dependencies ea60794
• feat: add async HTTP context (#18) a7e6d0d
• test: add test to reproduce regression 3ac1567

v5.3.2...v5.4.0