Columns with transform throw and break grid

[ronnetzer]

What is the expected behavior?

grid should work with transformed columns

What is the current behavior?

grid breaks and throws error in deepPathGet because this being passed is undefined. should replace this with col

ngrid/libs/ngrid/core/src/lib/utils/column.ts

Line 32 in 0718af8

return col.transform(deepPathGet(row, this), row, this);

What are the steps to reproduce?

https://stackblitz.com/edit/pebula-ngrid-starter-vg2c8x?file=app/app.component.ts
added transform to all columns, you can see that no value is being passed, change the transform to return col and you'll see its not the real col

locally, I receive this error

Which versions of Angular, CDK, Material, NGrid, OS, TypeScript, browsers are affected?

angular: 11
ngrid: 3.0.0

Is there anything else we should know?

[ronnetzer]

duplicate of #158

[shlomiassaf]

@ronnetzer Release 3.0.1, thank you