doc: add change log and testnet upgrade hight

[unclezoro]

Description

this PR prepare for the v0.10.17 release.

Rationale

1. change the upgrade height for testnet, target at 4th March UTC 6:00.
2. Add change logs

Example

None

Changes

This is a hardfork upgrade on testnet, every client is suggested to upgrade

Preflight checks

• build passed (make build)
• tests passed (make test)
• integration tests passed (make integration_test)
• manual transaction test passed (cli invoke)

Already reviewed by

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Related issues

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.87%. Comparing base (195d046) to head (2bbf432).

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Additional details and impacted files

@@              Coverage Diff              @@
##           bc-fusion    #1011      +/-   ##
=============================================
+ Coverage      47.85%   47.87%   +0.01%     
=============================================
  Files            127      127              
  Lines          12822    12822              
=============================================
+ Hits            6136     6138       +2     
+ Misses          6252     6249       -3     
- Partials         434      435       +1     

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