String defined steps are not parsed correctly

[mmelko]

Describe the Bug

According the YAML DSL schema it's possible to define some steps directly with the string instead of step parameters, e.g:

  - setExchangePattern: pattern
  - convertBodyTo: string
  -  removeHeader: header
  - removeProperties: props.*
  - toD: direct:a
```  instead of 
```yaml
  - setExchangePattern: 
       pattern:inOnly
  - convertBodyTo: 
       type: string
  -  removeHeader: 
         name: header
  - removeProperties: 
        pattern: props.*
  - toD: 
       uri:direct:a

It seems that Kaoto is recognising only steps with uri, and expressions and dataformat.

This might be quite hard but I believe I'd be nice to recognise steps which required attributes can be defined using string.

Related to: #2084

Steps to Reproduce the Bug or Issue

1. in the source code view paste some route with string defied steps eg:

- route:
   id: route-2517
   from:
     id: from-2423
     uri: timer
     parameters:
       period: "1000"
       timerName: template
     steps:
       - log: ${body}
       - loadBalance:
           steps:
             - to: direct:a
           customLoadBalancer: new
       - setExchangePattern: inOnly
       - convertBodyTo: string

2. check the convertBodyTo, customLoadBalancer, setExchangePattern in the visualisation form.

Screenshots or Videos

No response

Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 0.30.0]

[lordrip]

There's still an issue that we need to consider for the next PR:

Starting with this XML route

<camel>
  <route id="route-8014">
    <from id="from-8738" uri="timer:template?period=1000"/>
  </route>
  <beans>
    <bean name="hola" type="org.slf4j.Logger">
      <constructors>
        <constructor value="value-0"/>
        <constructor value="value-1"/>
      </constructors>
    </bean>
  </beans>
</camel>

Going to YAML, we see this:

- route:
    id: route-8014
    from:
      id: from-8738
      uri: timer:template?period=1000
      steps: []
- beans:
    - constructors:
        "0": value-0
        "1": value-1
      name: hola
      type: org.slf4j.Logger

Notice how the URI in the from tag is not parsed into parameters.