Add support for T-Digest (#2214)

* wip

* close #2216 - add support for TDIGEST.MERGESTORE and make compression optional on TDIGEST.CREATE

* fix some tdigest commands, use bloom edge docker

* fix index.ts

* 2.4-RC2 (v2.4.1)

* fix some commands and tests

* clean code

packages/bloom/lib/commands/t-digest/index.spec.ts

@@ -0,0 +1,55 @@
+import { strict as assert } from 'assert';
+import { pushCompressionArgument, transformDoubleReply, transformDoublesReply } from '.';
+
+describe('pushCompressionArgument', () => {
+    it('undefined', () => {
+        assert.deepEqual(
+            pushCompressionArgument([]),
+            []
+        );
+    });
+
+    it('100', () => {
+        assert.deepEqual(
+            pushCompressionArgument([], { COMPRESSION: 100 }),
+            ['COMPRESSION', '100']
+        );
+    });
+});
+
+describe('transformDoubleReply', () => {
+    it('inf', () => {
+        assert.equal(
+            transformDoubleReply('inf'),
+            Infinity
+        );
+    });
+
+    it('-inf', () => {
+        assert.equal(
+            transformDoubleReply('-inf'),
+            -Infinity
+        );
+    });
+
+    it('nan', () => {
+        assert.equal(
+            transformDoubleReply('nan'),
+            NaN
+        );
+    });
+
+    it('0', () => {
+        assert.equal(
+            transformDoubleReply('0'),
+            0
+        );
+    });
+});
+
+it('transformDoublesReply', () => {
+    assert.deepEqual(
+        transformDoublesReply(['inf', '-inf', 'nan', '0']),
+        [Infinity, -Infinity, NaN, 0]
+    );
+});