Decorator for exception handling in Checker

[sttor]

1. Add exception handling to all the methods of Container Checker
2. Add exception handling so that flow will not be disrupted because of one issue.
3. Global exception is not recommended, still over the remove it, add comment for the same.

[tanmoysrt]

@sttor I like to start contributing in KubeLight with this enhancement issue. Can you assign me this ?

[sttor]

Hi, @Tanmoy741127

@pwned-17 has already worked on it.

[tanmoysrt]

Hi, @Tanmoy741127

@pwned-17 has already worked on it.

Oh fine. Will find another one.