Add password complexity checks. The default settings require a lowercase, uppercase, number and a special character within passwords.

Co-Authored-By: T-M-A <maxim.tkachenko@gmail.com>
Co-Authored-By: Lanre Adelowo <adelowomailbox@gmail.com>
Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>
Co-Authored-By: Lauris BH <lauris@nix.lv>

* add CLI commands to manage LDAP authentication source

* delete Gogs copyright

* remove unused return value of func parseLoginSource

* fix comment

Co-Authored-By: ngourdon <31291059+ngourdon@users.noreply.github.com>

* remove config flag already present in global flags

* remove config flag from ldap commands in docs

* remove config flag handling

* add cli flag for access token while creating a user

* Add username flag in create-user command

* Fix the error message

* Change name to username on flag of create-user command

* Include create-user flags of both versions

* delete deprecated example of create-user command

* move code.gitea.io/git to code.gitea.io/gitea/modules/git

* fix imports

* fix fmt

* fix misspell

* remove wrong tests data

* fix unit tests

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* enable Debug to trace the failure tests

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* comment commit count tests since git clone depth is 50

* fix tests

* update from code.gitea.io/git

* revert change to makefile

* add migration and basic UI for changing a user's theme

* update user themem

* use right text on button

* load theme based on users' selection

* load theme based on users' selection in pwa too

* update sample config

* delete older theme loading

* implement AfterLoad to set users' theme properly

* set up default theme when creating a user. This uses the installation wide theme

* use flash messages for error

* set default theme when creating a user from the cli

* fix @lunny review

* don't force a password change for the admin user

* don't totally dicard -must-change-password flag if creating the first (admin) user via the cli. Use flag if present but make sure to default to not forcing a password update

* add random-password flag

* run make fmt

* add length cli flag rather than use a default value

* add support for an admin to force a user to change his/her password from thee cli

* use BoolFlag instead

* default to true

* simplify by removing unnneccessary if/else

* Add cli commands to regen hooks & keys

* make fmt

* Allow passing path to config as an option

* add docs

* General refactor of the cmd package

* Address breakage in runCreateUser

* Place "common" functions into cmd.go

* Change EncodePasswd to HashPassword

* Create test+benchmark for HashPassword

* Add repo-sync-releases admin command

Will help recovering corrupted database, see #3247

* Load repos in chunks of 10, exit with error if unable to get a list, scan private repos, fix typo

* Fix debug output about num releases

* Introduce RepositoryListDefaultPageSize constant, set to 64

Use it from the new admin command

* Use RepositoryListDefaultPageSize in more places

* Document RepositoryListDefaultPageSize

* only update needed columns when update user

* fix missing update_unix column

* Add change-password admin command

* make xorm log configable

* bug fixed for other sub commands except web

* rebase and fix xorm log

* bug fix for TrimSpace

- Update import paths from github.com/go-gitea to code.gitea.io
- Fix import path for travis

See https://docs.travis-ci.com/user/languages/go#Go-Import-Path

Signed-off-by: Matthias Loibl <mail@matthiasloibl.com>

Signed-off-by: Matthias Loibl <mail@matthiasloibl.com>