MM-10417 Add local image proxy and enable by default (#9967)

* MM-10417 Add local image proxy and enable by default

* Remove unused function

* Add dependencies for willnorris/imageproxy

* Fixed compilation errors

* Lock to the master version of willnorris/imageproxy

* Fix atmos/camo proxy when no SiteURL is specified

* Re-add default values for deprecated settings

* Fix unit tests added by merge

* Pass imageproxy to App struct

* Remove unneeded locking when creating the image proxy

* Remove empty test file

utils/config.go

@@ -648,8 +648,7 @@ func GenerateLimitedClientConfig(c *model.Config, diagnosticId string, license *
 	props["DiagnosticId"] = diagnosticId
 	props["DiagnosticsEnabled"] = strconv.FormatBool(*c.LogSettings.EnableDiagnostics)
 
-	hasImageProxy := c.ServiceSettings.ImageProxyType != nil && *c.ServiceSettings.ImageProxyType != "" && c.ServiceSettings.ImageProxyURL != nil && *c.ServiceSettings.ImageProxyURL != ""
-	props["HasImageProxy"] = strconv.FormatBool(hasImageProxy)
+	props["HasImageProxy"] = strconv.FormatBool(*c.ImageProxySettings.Enable)
 
 	props["PluginsEnabled"] = strconv.FormatBool(*c.PluginSettings.Enable)