[enh] #1037 Migrate indexer.js + blockchainContext.js

.eslintignore

.gitignore

app/lib/blockchain/BasicBlockchain.ts

app/lib/blockchain/DuniterBlockchain.ts

app/lib/blockchain/IndexedBlockchain.ts

app/lib/blockchain/MiscIndexedBlockchain.ts

app/lib/blockchain/SqlBlockchain.ts

app/lib/blockchain/interfaces/BlockchainOperator.ts

app/lib/common.ts

app/lib/computation/BlockchainContext.ts

app/lib/computation/QuickSync.ts

app/lib/dal/fileDAL.js

app/lib/dal/sqliteDAL/AbstractIndex.js

app/lib/dal/sqliteDAL/index/CIndexDAL.js

app/lib/dal/sqliteDAL/index/IIndexDAL.js

app/lib/dal/sqliteDAL/index/MIndexDAL.js

app/lib/dal/sqliteDAL/index/SIndexDAL.js

app/lib/db/DBBlock.ts

app/lib/db/DBHead.ts

app/lib/db/DBTransaction.ts