Expose a column input for passing additional data/state in the template contexts of the column

[rkaraivanov]

Add a new input property on the column component which allows users to pass additional properties in the
template context objects of the column itself (cell, header, editing, etc.)

Example:

    <igx-column [templateContext]="contextObject">
        <ng-template igxCell let-cell="cell">
            {{ cell.column.contextObject.prop }}
        </ng-template>
    </igx-column>

Related to the discussion in #8896

[github-actions]

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