public Set<MediaType> getSupportedEmbedTypes(ParseContext context) {
        return getSupportedEmbedTypes();
    }
Checks to see if the command can be run. Typically used with something
like "myapp --version" to check to see if "myapp" is installed and on the
path.

@param checkCmd   the check command to run
@param errorValue what is considered an error value?
@return whether or not the check completed without error
tika-core/src/main/java/org/apache/tika/embedder/ExternalEmbedder.java