[Plugin support] Issues with Niagara plugin
Steps to reproduce:
1. Open latest version of https://github.com/jmgomez/NimTemplate/
2. Open NimTemplate.uproject in a text editor
3. Add the following to the Plugins section:
	```
			{
				"Name": "Niagara",
				"Enabled": true
			}
	```
4. Recompile NimForUE Plugin.

Trying to use the Niagara plugin produces the following issues with the auto-generated bindings:
## Errors:
### niagara.nim
`FNiagaraPosition`
```
NimTemplate\Plugins\NimForUE\src\nimforue\unreal\bindings\exported\niagara.nim(2039, 5) Error: undeclared identifier: 'FNiagaraPosition'
```
`UNiagaraParameterCollectionPtr`
```
NimTemplate\Plugins\NimForUE\src\nimforue\unreal\bindings\exported\niagara.nim(3693, 18) Error: undeclared identifier: 'UNiagaraParameterCollectionPtr'
```
`UNiagaraEffectTypePtr`
```
NimTemplate\Plugins\NimForUE\src\nimforue\unreal\bindings\exported\niagara.nim(4022, 58) Error: undeclared identifier: 'UNiagaraEffectTypePtr'
```
`ANiagaraPerfBaselineActorPtr`
```
NimTemplate\Plugins\NimForUE\src\nimforue\unreal\bindings\exported\niagara.nim(4049, 22) Error: undeclared identifier: 'ANiagaraPerfBaselineActorPtr'
```
### niagaraeditor.nim
`UNiagaraClipboardFunctionInputPtr`
```
NimTemplate\Plugins\NimForUE\src\nimforue\unreal\bindings\exported\niagaraeditor.nim(137, 39) Error: undeclared identifier: 'UNiagaraClipboardFunctionInputPtr'
```
`UNiagaraStackModuleItemPtr`
```
NimTemplate\Plugins\NimForUE\src\nimforue\unreal\bindings\exported\niagaraeditor.nim(1010, 50) Error: undeclared identifier: 'UNiagaraStackModuleItemPtr'
```