new withEnv function

[tsahiduek]

Fix #778.
Add cloneEnv method.
See description of 778 -->
AWS CDK has a basic type of cdk.Environment, which is an object holds the account and the region for a target environemtn for deployment.
Having a new clone function that accept a cdk.Evironment type can simplify code using the clone method

[shapirov103]

@tsahiduek I like your thinking and making code level improvements.
However, cloneEnv is not very idiomatic in typescript (clone is clone). The approach that I planned for such case is with, for example builder.withBlueprintProps that we have.

I propose a change to the method and renaming to withEnv similar to withBlueprintProps. Then you can achieve your scenario like:

blueprint.clone().withEnv(env);

Also please make env mandatory in the withEnv method. Implementation will change to just set this.env to the pass param.

[tsahiduek]

@tsahiduek I like your thinking and making code level improvements. However, cloneEnv is not very idiomatic in typescript (clone is clone). The approach that I planned for such case is with, for example builder.withBlueprintProps that we have.

I propose a change to the method and renaming to withEnv similar to withBlueprintProps. Then you can achieve your scenario like:

blueprint.clone().withEnv(env);

Also please make env mandatory in the withEnv method. Implementation will change to just set this.env to the pass param.

Thank you @shapirov103 . Just pushed an updated commit as requested.

[shapirov103]

LGTM