feat(ng-dev/ts-circular-dependencies): support ignoring type only imports/exports for circular dependency checks

[josephperrott]

By setting a configuration, imports/exports which use the type keyword to indicate they are type-only imports/exports
are ignored with respect to circular dependency checks.

This circular dependency would be considered a circular dependency by the tool:

File 1:

import type {symbol} from './file-2';

export const coolSymbol: boolean = true;
...

File 2:

import {coolSymbol} from './file-1';

export const symbol: Symbol =  Symbol();
...

By enabling ignoreTypeOnlyChecks, the type import is ignored, resulting in no circular dependency.

[devversion]

Now you can also spare the extra assignment and member declaration by just marking it e.g. as private in the constructor (that was mostly why I preferred the simple parameter)

[angular-robot]

This PR was merged into the repository by commit 682adb7.

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