add succinct data structures

[KirillLykov]

It looks like using succinct data structures in this context might be a good fit. Especially, if you are looking for tries, filters with range queries functionality.

[jarry-xiao]

Definitely would be interested in external contributors who want to take a stab at writing other data structures that fit this paradigm. It's written to be generic, so it shouldn't be limited to only blockchain related applications (but fits nicely with general embedded systems programming).

Would be cool to see:

• Trie
• BTreeMap
• Generic DAG (or undirected)