Add missing `goog.require`/`goog.requireType` statements
Add missing `goog.require`/`goog.requireType` statements

A "missing require" is when a JS file uses a namespace implicitly:

```
// no import of 'foo.bar.baz'
/** @type {foo.bar.baz} */
```

without first importing that namespace with a `goog.require` (or `goog.requireType`), like:

```
goog.requireType('foo.bar.baz');
/** @type {foo.bar.baz} */
```

We are changing the compiler to forbid "missing requires" consistently, and
this LSC is cleaning up existing code that violates this rule.

LSC doc: []

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=344903346

google/closure-templates,google/closure-templates,google/closure-templates,google/closure-templates,google/closure-templates