Expand helper js to include ifor and ifand

[guywillis]

Update the core helper js to include ifor and ifand statements.

Example of ifor use:
Only render the header section of an article / block / component when either the displayTitle, body, or instruction is present.

{{#any displayTitle body instruction}}
<div class="component__header {{_component}}__header">
</div>
{{/any}}

Example of ifand use:
Only render the header section of an article / block / component when the displayTitle, body, and instruction are all present.

{{#all displayTitle body instruction}}
<div class="component__header {{_component}}__header">
</div>
{{/all}}

Example of ifand ifor use:

{{#all (any displayTitle title) body instruction}}
<div class="component__header {{_component}}__header">
</div>
{{/all}}