chore: upgrade Material to 5.1.0

[akkumar]

Artifact of #560. - upgrading to ng 5.2.x .

Getting a whole lot of following warnings.

npm WARN @angular/[email protected] requires a peer of @angular/core@~5.1.1 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/common@~5.1.1 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/core@~5.1.1 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/common@~5.1.1 but none is installed. You must install peer dependencies yourself.

ng material 5.1.x is compatible with ng 5.2 indeed and upgrading fixes those warnings.

[CaerusKaru]

LGTM

[CaerusKaru]

Just one nit: please change your commit message to the one I specified in the PR title

[akkumar]

I see this has been merged already ( before I could change the commit message ). Anyway - thanks @CaerusKaru @ThomasBurleson for accepting the same.

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