Added log endpoint

Necessary to handle the request and response of the log API endpoint.

lib/trmnl/api/endpoints/log.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module TRMNL
+  module API
+    module Endpoints
+      # Handles API request/response.
+      class Log
+        include Dependencies[:client]
+
+        def call(token:, **) = client.post("log", headers: {"Access-Token" => token}, **)
+      end
+    end
+  end
+end

spec/lib/trmnl/api/endpoints/log_spec.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+RSpec.describe TRMNL::API::Endpoints::Log do
+  subject(:endpoint) { described_class.new client: }
+
+  include_context "with application dependencies"
+
+  let(:client) { TRMNL::API::Client.new http: }
+
+  describe "#call" do
+    let :http do
+      HTTP::Fake::Client.new do
+        post "/api/log" do
+          headers["Content-Type"] = "application/json"
+          status 204
+        end
+      end
+    end
+
+    it "answers record" do
+      result = endpoint.call token: "secret"
+      expect(result.success.status).to eq(204)
+    end
+  end
+end