* Add Attachment API
* repos/:owner/:repo/releases (add attachments)
* repos/:owner/:repo/releases/:id (add attachments)
* repos/:owner/:repo/releases/:id/attachments
* repos/:owner/:repo/releases/:id/attachments/:attachment_id

Signed-off-by: Jonas Franz <info@jonasfranz.de>

* Add unit tests for new attachment functions
Fix comments

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* fix lint

* Update vendor.json

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* remove version of sdk

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Fix unit tests
Add missing license header

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Add CreateReleaseAttachment
Add EditReleaseAttachment
Add DeleteReleaseAttachment

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Add filename query parameter for choosing another name for an attachment

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Fix order of imports

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Restricting updatable attachment columns

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* gofmt

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Update go-sdk
Replace Attachments with Assets

Signed-off-by: Jonas Franz <info@jonasfranz.de>

* Update go-sdk

Signed-off-by: Jonas Franz <info@jonasfranz.de>

* Updating go-sdk and regenerating swagger

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Add missing file of go-sdk

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Change origin of code.gitea.io/sdk to code.gitea.io/sdk
Update code.gitea.io/sdk

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Update swagger

Signed-off-by: Jonas Franz <info@jonasfranz.software>

* Update updateAttachment

* Small improve on deleting attachements

* improve the sequence of deletion

* refactor struct's time to remove unnecessary memory usage

* use AsTimePtr simple code

* fix tests

* fix time compare

* fix template on gpg

* use AddDuration instead of Add

* use AfterLoad instead of AfterSet on Structs

* fix the comments on AfterLoad

* fix the comments on action AfterLoad

* use created & updated instead BeforeInsert & BeforeUpdate

* fix vendor checksum

* only show generated SQL when development mode

* remove extra update column updated_unix

* remove trace config

* feat: add download count field and unit testing.

* fix: unit testing

* refactor: improve testing.

* fix: update comment

* add default value.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* Allow custom public files

* Gofmt code, lots of places not related to this pr

Moved attachments into seperate go file