Default to SQLite rather than Postgres & Redis (#72)

* Initial rough draft switch to sqlite.

* Rewrote cache implemenation.

* Provide typed tasks.

* Task cleanup.

* Use same db for tasks.

* Provide task queue registration and service container injection.

* Added optional delay to tasks. Pool buffers when encoding.

* Added tests for the task client and runner.

* Added handler examples for caching and tasks.

* Cleanup and documentation.

* Use make in workflow.

* Updated documentation.

* Updated documentation.

pkg/tasks/register.go

@@ -0,0 +1,10 @@
+package tasks
+
+import (
+	"github.com/mikestefanello/pagoda/pkg/services"
+)
+
+// Register registers all task queues with the task client
+func Register(c *services.Container) {
+	c.Tasks.Register(NewExampleTaskQueue(c))
+}