Add limits for ngram and shingle settings

Create index-level settings:
max_ngram_diff - maximum allowed difference between max_gram and min_gram in
NGramTokenFilter/NGramTokenizer. Default is 1.
max_shingle_diff - maximum allowed difference between max_shingle_size and
min_shingle_size in ShingleTokenFilter.  Default is 3.

Log a warning when
trying to create NGramTokenFilter, NGramTokenizer, ShingleTokenFilter
where difference between max_size and min_size exceeds the settings's value.

Closes elastic#25887

Author: mayya-sharipova

modules/analysis-common/src/test/resources/rest-api-spec/test/analysis-common/30_tokenizers.yml

@@ -29,8 +29,8 @@
 ---
 "nGram_exception":
     - skip:
-        version: " - 6.0.0"
-        reason: starting from version 6.0.1 this produces a warning
+        version: " - 6.0.99"
+        reason: starting from version 6.1.0 this produces a warning
         features: "warnings"
     - do:
         indices.analyze: