implement 'ocdev component list'

[kadel]

fixes #53
fixes #191

implements:
ocdev component list/ocdev list - list component names in current application and their types

▶ ./ocdev list
You have deployed:
nodejs using the nodejs component
ffff using the nodejs component
wildfly using the wildfly component

TODO:

• component.GetComponentType - needs to filter according to applicationName

[concaf]

This should return that there are no components when there are no components -

$ ocdev component list
You have deployed:

[concaf]

This message does not make sense -

$ ocdev component list
You have deployed:
nodejs using the nodejs component

Something like the following would be better:

$ ocdev component list
Application "nodejs" has the following components:
- nodejs
- nodejs2

[kadel]

This message does not make sense -

$ ocdev component list
You have deployed:
nodejs using the nodejs component

Why doesn't it make sense?
nodejs using the nodejs component
name of the component is the same as the type.

output can also look like this:

web-frontend using the nodejs component

see #191

[kadel]

This should return that there are no components when there are no components -

updated.
Now it shows

There are no components deployed.

[kadel]

Something like the following would be better:

$ ocdev component list
Application "nodejs" has the following components:
- nodejs
- nodejs2

this doesn't show what is the type of each component

[concaf]

Having the following message will be clearer IMO

$ ocdev component list
Application "nodejs" has the following components:
- nodejs, of type nodejs
- nodejs2, of type nodejs

[kadel]

Lets clear that in the original issue #191

[kadel]

can we sort out those messages outside this PR?
If this is the only issue I would merge this PR.

Right now it is implemented as it is described in the Issue. We can change those messages later.