Enabled AspNetCore wrapper to capture all headers as attributes

[vuqtran88]

Feature Description

Enabled AspNetCore wrapper to capture all headers as attributes if the allow_all_headers setting is set to true
Acceptance Criteria
Captures all headers as attributes if allow_all_headers enabled.
Automatically captures the following request headers regardless the condition of the allow_all_headers
request.headers.referer
Request.headers.accept
request.headers.contentLength
request.headers.host
request.headers.userAgent
Adds integration tests.
Test high security mode.