Add the default value of extendedIndentBeforeDot to `diktat-analysi…

…s.yml` (#1449)

### What's done:

 * The default value of the flag has been copied to the YAML, so that end users
   can now more easily change it.

diktat-rules/src/main/resources/diktat-analysis.yml

@@ -218,6 +218,8 @@
     extendedIndentForExpressionBodies: false
     # If true: if expression is split by newline after operator like +/-/`*`, then the next line is indented with two indentations instead of one
     extendedIndentAfterOperators: true
+    # If true: when dot qualified expression starts on a new line, this line will be indented with two indentations instead of one
+    extendedIndentBeforeDot: false
     # The indentation size for each file
     indentationSize: 4
 # Checks that there is no empty blocks in a file.