chore(architecture): deprecate some of the new architecture

In order to use Dependency Injection, we need to deprecate old classes
which aren't suitable for it, and which will be replaced by other ones
in followup commits.

Bug: twpowertools:226
Change-Id: I232bd9f036b6fb540eba27d7586d8054ce3de789
diff --git a/src/common/architecture/entrypoint/Context.ts b/src/common/architecture/entrypoint/Context.ts
index 0ebe29f..c2f50ad 100644
--- a/src/common/architecture/entrypoint/Context.ts
+++ b/src/common/architecture/entrypoint/Context.ts
@@ -4,6 +4,9 @@
   ScriptRunPhase,
 } from '../scripts/Script';
 
+/**
+ * @deprecated
+ */
 export interface Context {
   page: ScriptPage;
   environment: ScriptEnvironment;