chore: Rename Projects to Templates (#880)

Customer feedback indicated projects was a confusing name.
After querying the team internally, it seemed unanimous
that it is indeed a confusing name.

Here's for a lil less confusion @ashmeer7 🥂

coderd/database/queries/templateversions.sql

@@ -0,0 +1,56 @@
+-- name: GetTemplateVersionsByTemplateID :many
+SELECT
+	*
+FROM
+	template_versions
+WHERE
+	template_id = $1 :: uuid;
+
+-- name: GetTemplateVersionByJobID :one
+SELECT
+	*
+FROM
+	template_versions
+WHERE
+	job_id = $1;
+
+-- name: GetTemplateVersionByTemplateIDAndName :one
+SELECT
+	*
+FROM
+	template_versions
+WHERE
+	template_id = $1
+	AND "name" = $2;
+
+-- name: GetTemplateVersionByID :one
+SELECT
+	*
+FROM
+	template_versions
+WHERE
+	id = $1;
+
+-- name: InsertTemplateVersion :one
+INSERT INTO
+	template_versions (
+		id,
+		template_id,
+		organization_id,
+		created_at,
+		updated_at,
+		"name",
+		description,
+		job_id
+	)
+VALUES
+	($1, $2, $3, $4, $5, $6, $7, $8) RETURNING *;
+
+-- name: UpdateTemplateVersionByID :exec
+UPDATE
+	template_versions
+SET
+	template_id = $2,
+	updated_at = $3
+WHERE
+	id = $1;