MM-31063: Change constants to use CamelCase (#16608)

* MM-31063: Change constants to use CamelCase

* store package

* change allcaps to camel case (#16615)

* New tools.mod

Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>

store/constants.go

@@ -4,12 +4,12 @@
 package store
 
 const (
-	CHANNEL_EXISTS_ERROR = "store.sql_channel.save_channel.exists.app_error"
+	ChannelExistsError = "store.sql_channel.save_channel.exists.app_error"
 
-	USER_SEARCH_OPTION_NAMES_ONLY              = "names_only"
-	USER_SEARCH_OPTION_NAMES_ONLY_NO_FULL_NAME = "names_only_no_full_name"
-	USER_SEARCH_OPTION_ALL_NO_FULL_NAME        = "all_no_full_name"
-	USER_SEARCH_OPTION_ALLOW_INACTIVE          = "allow_inactive"
+	UserSearchOptionNamesOnly           = "names_only"
+	UserSearchOptionNamesOnlyNoFullName = "names_only_no_full_name"
+	UserSearchOptionAllNoFullName       = "all_no_full_name"
+	UserSearchOptionAllowInactive       = "allow_inactive"
 
-	FEATURE_TOGGLE_PREFIX = "feature_enabled_"
+	FeatureTogglePrefix = "feature_enabled_"
 )