doc: Add a page about rgw S3 API compliance

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: More documentation on S3 API compliance

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: Rgw S3 compliance page update

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: Update S3 compliance documentation bucket operations

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: More code links on S3 compliance
Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: rgw S3 compliance cosmetics

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: rgw S3 compliance code link not refering to master anymore

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: rgw S3 features compliance disambiguation

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: Add rgw S3 compliance column for test links

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: Add a proposal for naming convention in s3 compliance

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>
doc: Change s3 compliance naming convention to match s3 tests

Signed-off-by: Christophe Courtaut <christophe.courtaut@gmail.com>