Add POSCAR split and POSCAR modulation function.

[rsgrad] add poscar operations, only POSCAR split is available

[rsgrad] add POSCAR modulation method

Switch from ExpHP/vasp_poscar to homemade `Poscar` , refactoring.

0.2.5

[rsgrad] Refactoring, switch from exphp/vasp_poscar to homemade Poscar

Fix parse_cell issue with negative numbers in 'direct lattice vectors'

0.2.4

Fix parse_cell issues with negative numbers

Bugfixes for vibration mode parser and cell parser.

• Fix parse_cell failure in ISYM!=0 systems;
• Fix parse_dof failure for vibration systems

Add POSCAR option & bugfix

• When the system contains constraints, a POSCAR is needed, or the max forces info would be incorrect.
• fixed bug that when OUTCAR contains "Primitive cell", rsgrad may fail.

Several bugfixes

• fix parse_cputime failure with large number
• fix parse_efermi failure with large number
• fix force size calculation error

New UI more functions

0.2

Update release-binaries.yml