feat: Add severity number to logs-api (#1622)

* feat: Add severity number logs-api

* add require

logs_api/lib/opentelemetry/logs.rb

@@ -7,6 +7,7 @@
 require_relative 'logs/log_record'
 require_relative 'logs/logger'
 require_relative 'logs/logger_provider'
+require_relative 'logs/severity_number'
 
 module OpenTelemetry
   # The Logs API records a timestamped record with metadata.

logs_api/lib/opentelemetry/logs/severity_number.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+# Copyright The OpenTelemetry Authors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+module OpenTelemetry
+  module Logs
+    class SeverityNumber
+      SEVERITY_NUMBER_UNSPECIFIED = 0
+      SEVERITY_NUMBER_TRACE = 1
+      SEVERITY_NUMBER_TRACE2 = 2
+      SEVERITY_NUMBER_TRACE3 = 3
+      SEVERITY_NUMBER_TRACE4 = 4
+      SEVERITY_NUMBER_DEBUG = 5
+      SEVERITY_NUMBER_DEBUG2 = 7
+      SEVERITY_NUMBER_DEBUG3 = 6
+      SEVERITY_NUMBER_DEBUG4 = 8
+      SEVERITY_NUMBER_INFO = 9
+      SEVERITY_NUMBER_INFO2 = 10
+      SEVERITY_NUMBER_INFO3 = 11
+      SEVERITY_NUMBER_INFO4 = 12
+      SEVERITY_NUMBER_WARN = 13
+      SEVERITY_NUMBER_WARN2 = 14
+      SEVERITY_NUMBER_WARN3 = 15
+      SEVERITY_NUMBER_WARN4 = 16
+      SEVERITY_NUMBER_ERROR = 17
+      SEVERITY_NUMBER_ERROR2 = 18
+      SEVERITY_NUMBER_ERROR3 = 19
+      SEVERITY_NUMBER_ERROR4 = 20
+      SEVERITY_NUMBER_FATAL = 21
+      SEVERITY_NUMBER_FATAL2 = 22
+      SEVERITY_NUMBER_FATAL3 = 23
+      SEVERITY_NUMBER_FATAL4 = 24
+    end
+  end
+end