enhancement request: profile to support YAML multiline strings

[sosadchuk]

Hi,

We would like to use YAML multiline strings in profile, such as:

ExecuteScript: |-
	line1
        line2
        ...

Currently it's impossible, whenever you provide a value like this in your createProfileFromArgumentsHandler:

    value = `line1
line2`;

You will have it saved as property: "line1\nline2", quotes will also be enforced if you try to provide |- explicitly.

I looked through the libs, and found the root case, if you check the node_modules\@zowe\imperative\lib\profiles\src\utils\ProfileIO.js - you will find it uses the yamljs for writing, however it doesn't support multiline strings at the moment (https://github.com/jeremyfa/yaml.js/issues/123).

I also checked if the js-yaml lib can support that behavior, and it can (https://codesandbox.io/s/gallant-carson-nn87zd?file=/src/index.ts).

import * as yaml from "js-yaml";

const dumped = yaml.dump({
  property: "value",
  property2: `line1
line2`
});
console.log(dumped);

const loaded = yaml.load(dumped);
console.log(loaded);

Output:

property: value
property2: |-
  line1
  line2
 
{property: "value", property2: "line1
line2"}
->
property: "value"
property2: "line1
line2"

Could you please consider switching to the js-yaml lib?

Thanks, Sergei.