In visible parts, replace mentions of 'oAuth', by more accurate 'OAuth'

[themr0c]

Description

The Eclipse Che user interface (Web UI, configuration files, logs) contains multiple mentions of oAuth, but it's supposed to be OAuth, as stated on https://oauth.net/.

Reproduction Steps

These are the occurences of oAuth that need to be changed:

1. ./multiuser/keycloak/che-multiuser-keycloak-server/src/main/java/org/eclipse/che/multiuser/keycloak/server/KeycloakServiceClient.java: // we should threat this as unauthorized and send to oAuth login page.
2. ./assembly/assembly-wsmaster-war/src/main/webapp/WEB-INF/classes/che/che.properties:# You can setup GitHub oAuth to automate authentication to remote repositories.
3. ./assembly/assembly-wsmaster-war/src/main/webapp/WEB-INF/classes/che/che.properties:# You need to first register this application with GitHub oAuth.
4. ./dashboard/src/app/workspaces/create-workspace/project-source-selector/add-import-project/import-github-project/oauth-dialog/no-github-oauth-dialog.controller.ts: * @description This class is handling the controller for the no Github oAuth dialog
5. ./dashboard/src/app/workspaces/create-workspace/project-source-selector/add-import-project/import-github-project/oauth-dialog/no-github-oauth-dialog.html:
6. ./dashboard/src/app/workspaces/create-workspace/project-source-selector/add-import-project/import-github-project/oauth-dialog/no-github-oauth-dialog.html:
   GitHub oAuth is not configured. {{noGithubOauthDialogController.message}}
7. ./dashboard/src/components/api/che-o-auth-provider.factory.ts: * This class is handling the registered oAuth providers.
8. ./dashboard/src/components/api/che-api.factory.ts: * The Che oAuth Provider API
9. ./wsmaster/che-core-api-user-shared/src/main/java/org/eclipse/che/api/user/shared/dto/UserDto.java: @ApiModelProperty("User alias which is used for oAuth")
10. ./wsmaster/che-core-api-auth/src/main/java/org/eclipse/che/security/oauth/OAuthAuthenticatorTokenProvider.java:/** Retrieves oAuth token with help of OAuthAuthenticatorProvider. */
11. ./deploy/openshift/deploy_che.sh:Setup OpenShift oAuth: ${SETUP_OCP_OAUTH}
12. ./deploy/openshift/deploy_che.sh: printInfo "Registering oAuth client in OpenShift"
13. ./deploy/openshift/deploy_che.sh: # register oAuth client in OpenShift
14. ./deploy/openshift/deploy_che.sh: printInfo "Registering oAuth client in Keycloak"
15. ./deploy/openshift/deploy_che.sh: # setup Che variables related to oAuth identity provider
16. ./deploy/openshift/templates/che-server-template.yaml: description: GitHub oAuth app client ID. Applicable to Che single user only!
17. ./deploy/openshift/templates/che-server-template.yaml: description: GitHub oAuth app client servet. Applicable to Che single user only!
18. ./selenium/che-selenium-test/README.md:where OPENSHIFT_TOKEN is optional and is aimed to replace username/password when OpenShift is configured with oAuth.
19. ./ide/che-core-ide-app/src/main/resources/org/eclipse/che/ide/CoreLocalizationConstant.properties:project.import.ssh.key.upload.failed.text=We are unable to clone your repository even though you''ve configured oAuth access. \