[system/Environment variables getter with fallback]
Retrieves the values for a list of environment variables from either the system environment by name or the provided default values. Sends a dictionary with the resolved values, indexed by variable names.
Example (falling back to defaults):
["Var1", "Var2"]@0 received via variable names
{"Var1": "value1" }@0 received via default values
Sent via resolved varibles:
{<br>
"Var1": "value1",<br>
"Var2": ""<br>
}<br>
```<br>
---
__Keywords__: environment, variable, fallback, default
### Input ports
* __variable names__: ` string[] `
Receives a list of variable names to be resolved from the environment.<br>
<br>
Example:<br>
["Var1", "Var2"]<br>
* __default values__: ` {string: string} `
Receives optional default values for undefined environment variables.<br>
<br>
Example:<br>
{ "var1": "value1" }<br>
### Output ports
* __resolved variables__: ` {string: string} `
Sends the dictionary of resolved environment variables as a name:value dictionary.<br>
<br>
Contains the environment value if found, otherwise the specified default value if any.<br>
<br>
<br>
Example:<br>
{<br>
"V1": "value 1",<br>
"V2": "default value 2"<br>
}<br>
