Surround Query Parser NOT operator is binary [LUCENE-9008]

The following query works in the surround query parser (tested via solr):

```java
foo NOT bar
```

However despite the Solr ref guide specifically noting that "NOT" is unary, the following throw parsing exceptions (also tested in solr):

```java
foo AND NOT bar
```

```java
NOT bar AND foo
```

additionally the right hand side of NOT requires parenthesis for fielded terms...

```java
fizz NOT game:buzz 
```

throws an exception whereas

```java
fizz NOT (game:buzz) 
```

keeps the parser happy.

The binary syntax may be intentional and certainly has a nice readability. The parenthesis around fielded stuff seems arbitrary and just irritating. However, this parser has been around for a long time so we probably won't want to go changing it fundamentally.

I suggest that this ticket should provide some docs clarifying at least this surprising syntax in the lucene package javadoc, the solr parser factory class javadocs and the solr ref guide docs () should be corrected and expanded to at least clarify this surprising and quirky binary NOT syntax.

---
Migrated from [LUCENE-9008](https://issues.apache.org/jira/browse/LUCENE-9008) by Gus Heck (@gus-asf)

Review the Surround query parser examples in the issue, then locate the Lucene package javadocs, the Solr parser factory class javadocs, and the Solr reference guide section linked in the report. Clarify the binary NOT syntax, the unary-looking forms that fail, and the parenthesis requirement for fielded terms; done means all three documentation locations consistently explain the behavior.

Written by the indexing model from the issue text.