Improve StoreProperties comments

[t92549]

* This is used.... seems to be leftover by mistake, there should be actual explanation here:

Gaffer/core/store/src/main/java/uk/gov/gchq/gaffer/store/StoreProperties.java

Lines 77 to 88 in 7a2e2ba

	/**
	* This is used....
	* eg.gaffer.cache.service.class="uk.gov.gchq.gaffer.cache.impl.HashMapCacheService"
	*/
	public static final String CACHE_SERVICE_CLASS = CacheProperties.CACHE_SERVICE_CLASS;
	/**
	* This is used...
	* CASE INSENSITIVE
	* e.g. gaffer.cache.service.name.suffix="v2"
	*/
	public static final String CACHE_SERVICE_NAME_SUFFIX = "gaffer.cache.service.name.suffix";

[GCHQDeveloper314]

This file also needs fixing:

Gaffer/store-implementation/federated-store/src/main/java/uk/gov/gchq/gaffer/federatedstore/FederatedStoreProperties.java

Lines 31 to 38 in b8fd95d

	* This is used....
	* e.g gaffer.federatedstore.isPublicAllowed=true
	*/
	public static final String IS_PUBLIC_ACCESS_ALLOWED = "gaffer.federatedstore.isPublicAllowed";
	public static final String IS_PUBLIC_ACCESS_ALLOWED_DEFAULT = String.valueOf(true);
	/**
	* This is used....
	* e.g gaffer.federatedstore.customPropertiesAuths="auth1"