update BSON due to vulnerability, minor fixes (#20)

Update bson package from 2.0.8 to 4.4.0 due to a vulnerability in v2. The interface changed, so update the files that use the package.
Remove an unused TypeArray import.
Remove a stray comment.

lib/bloom/sbbf.ts

@@ -1,5 +1,3 @@
-import TypedArray = NodeJS.TypedArray;
-
 import parquet_thrift from "../../gen-nodejs/parquet_types";
 import Long = require('long')
 import XxHasher from "./xxhasher"

lib/codec/plain.js

@@ -49,7 +49,6 @@ function decodeValues_INT32(cursor, count) {
 function encodeValues_INT64(values) {
   let buf = Buffer.alloc(8 * values.length);
   for (let i = 0; i < values.length; i++) {
-    //console.log(typeof values[i]);
     buf.writeBigInt64LE(BigInt(values[i]), i*8);
   }
 

lib/types.js

@@ -292,13 +292,11 @@ function fromPrimitive_JSON(value) {
 }
 
 function toPrimitive_BSON(value) {
-  var encoder = new BSON();
-  return Buffer.from(encoder.serialize(value));
+  return Buffer.from(BSON.serialize(value));
 }
 
 function fromPrimitive_BSON(value) {
-  var decoder = new BSON();
-  return decoder.deserialize(value);
+  return BSON.deserialize(value);
 }
 
 function toPrimitive_TIME_MILLIS(value) {

package.json

@@ -20,7 +20,7 @@
     "@types/thrift": "^0.10.10",
     "assert": "^2.0.0",
     "browserify-zlib": "^0.2.0",
-    "bson": "^2.0.8",
+    "bson": "4.4.0",
     "cross-fetch": "^3.1.4",
     "esbuild": "^0.12.11",
     "events": "^3.3.0",