copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- save

copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205

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functypes: provide the recv and send arg and return types

This header is for providing the argument types for recv() and send()
when built to not use a dedicated config-[platfor].h file.

functypes: provide the recv and send arg and return types

This header is for providing the argument types for recv() and send()
when built to not use a dedicated config-[platfor].h file.

Remove the slow brute-force checks from configure and cmake.

This change also removes the use of the types for select, as they were
not used in code.

Closes #9592

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copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869

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vauth: factor base64 conversions out of authentication procedures

Input challenges and returned messages are now in binary.
Conversions from/to base64 are performed by callers (currently

vauth: factor base64 conversions out of authentication procedures

Input challenges and returned messages are now in binary.
Conversions from/to base64 are performed by callers (currently curl_sasl.c
and http_ntlm.c).

Closes #6654

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gsasl: fix errors/warnings building against libgsasl

- also fix an indentation
- make Curl_auth_gsasl_token() use CURLcode (by Daniel Stenberg)

Ref: https://github.com/curl/curl

gsasl: fix errors/warnings building against libgsasl

- also fix an indentation
- make Curl_auth_gsasl_token() use CURLcode (by Daniel Stenberg)

Ref: https://github.com/curl/curl/pull/6372#issuecomment-776118711
Ref: https://github.com/curl/curl/pull/6588

Reviewed-by: Jay Satiro
Assisted-by: Daniel Stenberg
Reviewed-by: Simon Josefsson
Closes #6587

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sasl: support SCRAM-SHA-1 and SCRAM-SHA-256 via libgsasl

Closes #6372