* 🔧 update FIO block explorer url

* update coins.md

Makefiles fixed. Unit tests passing.

* update zcash/xlm block explorer

* Fix tests

* support IoTeX native staking

Add missing call to `delete` in function `fileR`.

* Script for building sample app (C++).

* Include go sample app in build script.

* Add echo's.

* Sample build: include OSX and Android build.

* Minor FIo test extension.

* Samples build: split in 3, by 3 build platforms.

* Revert "Samples build: split in 3, by 3 build platforms."

This reverts commit a262043.

* Options for different platforms.

* Sample-build: Rearranged with functions per sample app

Co-authored-by: Catenocrypt <[email protected]>

* Create CODEOWNERS

* Create android-ci.yml
* Add ios-ci.yml
* Add linux-ci.yml
* Add sudo
* try set boost version
* install libc++
* Fix linux coverage
* move internal src to local/src
* Fix protobuf symbolic link

* Bitcoin Script minor fixes and new tests.
* Extra tests for the missing 3 lines.
* Fix isPayToWitnessScriptHash (was typo), new isPayToWitnessPublicKeyHash().
* A rename (Pubkey -> PublicKey).
* Extra test for TWBitcoinScript coverage.

Package version updates.

* Some low-impact cppcheck finding fixes.
* Some reverts to address diff coverage metric.
* Add scripts for cppcheck to tools.
* Some minor reference type style linting.
Co-authored-by: Catenocrypt <[email protected]>

* Registers new coin.
* Define protobuf models
* Implement entry, address and add tests
* Fix AnyAddress, add further address tests
* Implement serialization and signing, add tests
* Add key derivation tests
* Add tests for Android
* Add tests for iOS
* Fix derivation path and tests
* Fix after review (including build issues)