refactored packages, added more docs

docs/bipack.md

@@ -1,6 +1,13 @@
 # Module mp_bintools
 
-This library contains a `Bipack` binary format serializer, see [net.sergeych.bipack.BipackEncoder] and [net.sergeych.bipack.BipackDecoder]. Also, there are many general-purpose utilities that simplify binary data processing, see package [net.sergeych.bintools] below. 
+## Collection of binary tools
+
+Most interesting:
+
+- Full set of CRC: [net.sergeych.bintools.CRC]
+- Binary bit-effective __BiPack format__ serializer: [net.sergeych.bipack.BipackEncoder] and [net.sergeych.bipack.BipackDecoder]. Also typed key-value storage for it, see [net.sergeych.bipack.KVStorage] and its delegates and [net.sergeych.bipack.defaultNamedStorage].
+- Multiplatform synchronization tools, that works the same and properly on JS, native and JVM, see [net.sergeych.synctools]
+- many general-purpose utilities that simplify binary data processing, see package [net.sergeych.bintools] below. 
 
 
 # Package net.sergeych.bipack
@@ -16,4 +23,10 @@ There are also special annotation to fine tune the format: [Extendable], [Framed
 
 General-purpose binary tools: encoding to bytes, hex, binary dumps. variable length integer, ect. Most of it is used internally by bipack serializers, see [net.sergeych.bipack] for details.
 
-In particular, see [Varint] and [Smartint] variable-length compact integer codecs and also [DataSource] and [DataSink] multiplatform synchronous read/write interfaces.
+In particular, see [Varint] and [Smartint] variable-length compact integer codecs and also [DataSource] and [DataSink] multiplatform synchronous read/write interfaces.
+
+# Package net.sergeych.synctools
+
+To write a code that compiles and runs, and most likely works on the
+JS, native, and JVM, we need some portable/compatible synchronization 
+primitives. This package is a collection of such.