[SPARK-14050][ML] Add multiple languages support and additional methods for Stop Words Remover

## What changes were proposed in this pull request?

This PR continues the work from #11871 with the following changes:
* load English stopwords as default
* covert stopwords to list in Python
* update some tests and doc

## How was this patch tested?

Unit tests.

Closes #11871

cc: burakkose srowen

Author: Burak Köse <burakks41@gmail.com>
Author: Xiangrui Meng <meng@databricks.com>
Author: Burak KOSE <burakks41@gmail.com>

Closes #12843 from mengxr/SPARK-14050.

1 files changed, 114 insertions, 0 deletions

diff --git a/mllib/src/main/resources/org/apache/spark/ml/feature/stopwords/swedish.txt b/mllib/src/main/resources/org/apache/spark/ml/feature/stopwords/swedish.txt
new file mode 100644
index 0000000000..9fae31c185
--- /dev/null
+++ b/mllib/src/main/resources/org/apache/spark/ml/feature/stopwords/swedish.txt
@@ -0,0 +1,114 @@
+och
+det
+att
+i
+en
+jag
+hon
+som
+han
+på
+den
+med
+var
+sig
+för
+så
+till
+är
+men
+ett
+om
+hade
+de
+av
+icke
+mig
+du
+henne
+då
+sin
+nu
+har
+inte
+hans
+honom
+skulle
+hennes
+där
+min
+man
+ej
+vid
+kunde
+något
+från
+ut
+när
+efter
+upp
+vi
+dem
+vara
+vad
+över
+än
+dig
+kan
+sina
+här
+ha
+mot
+alla
+under
+någon
+eller
+allt
+mycket
+sedan
+ju
+denna
+själv
+detta
+åt
+utan
+varit
+hur
+ingen
+mitt
+ni
+bli
+blev
+oss
+din
+dessa
+några
+deras
+blir
+mina
+samma
+vilken
+er
+sådan
+vår
+blivit
+dess
+inom
+mellan
+sådant
+varför
+varje
+vilka
+ditt
+vem
+vilket
+sitta
+sådana
+vart
+dina
+vars
+vårt
+våra
+ert
+era
+vilkas
\ No newline at end of file