Change API to support Lisk SDK v6 API

[ManuGowda]

Description

Implement all upstream API changes(endpoints and data schematics) made in Lisk SDK v6 the changes from, including new features.

Motivation

Adapt Lisk Mobile to changes in endpoints and data schematics.

Tasks

• [ ] #1514
• [ ] #1511

Sprint 44

• [x] #1342

Sprint 45

• [x] #1438
• [x] #1439
• [x] #1440
• [x] #1441
• [x] #1442
• [x] #1443
• [x] #1452

Sprint 46

• [x] #1444
• [x] #1445
• [x] #1446
• [x] #1447
• [x] #1448
• [x] #1450
• [x] #1451
• [x] #1466

Sprint 47

• [x] #1479

Sprint 48

• [x] #1453
• [x] #1501
• [x] #1502
• [x] #1503

Sprint 49

• [ ] #1509
• [ ] #1422