Add the functions to the number of objects.

Add Index::getNumberOfObjects() and ngtpy::get_num_of_objects().

Fix bugs of range queries for ngt-qg

v1.14.3

fix bugs of range queries for ngt-qg

Fix bugs of optimizer relating to fp16

v1.14.2

fix bugs of optimizer relating to fp16

Fix bugs of the build without AVX

v1.14.1

fix bugs of build without avx

Support fp16

v1.14.0

support fp16

Add C APIs for linear search

v1.13.8

add C APIs for linear search

Add C APIs for NGTQG

v1.13.7

update C APIs for NGTQG

Update ngtpy and metric functions

v1.13.5

update ngtpy and metric functions

Fix bugs of the quantized object stream reducing the performance

v1.13.4

fix bugs of the quantized object stream reducing the performance

Add export-graph to the ngt command

v1.12.3

add export-graph to the ngt command