Test: Add 110_PW_SY_symmetry_12K to test multiple k points for symmetry (#3023)

* Doc: fix parameters in relax module

* Update input-main.md

* Change positions of Default and Unit in relax module input-main.md

* Doc: add interface of CANDELA doc

* change even number of meshes to odd number in read_pp_upf100.cpp

* change default scf_thr in PW+NSCF calculation.

* change scf_thr to1e-6 in PW+NSCF calculation

* fix 186_PW_SKG_10D10S according to the new diag_thr

* improve the efficiency of cal_Mmn in the wannier90 interface

* add output switch of wannier90 interface files to INPUT

* Update write_input_test.cpp

* add description of out_wannier_* in input-main.md

* Update Wannier90.md

* Update input-main.md

* Update Wannier90.md

* Test: add 110_PW_SY_symmetry_12K test

* Update INPUT

---------

Co-authored-by: Mohan Chen <mohan.chen.chen.mohan@gmail.com>

Author: Liu-RX

tests/integrate/110_PW_SY_symmetry_12K/INPUT

@@ -0,0 +1,10 @@
+INPUT_PARAMETERS
+
+pseudo_dir              ../../PP_ORB
+orbital_dir             ../../PP_ORB
+ntype                   1
+ecutwfc                 50
+calculation             scf
+scf_thr                 1e-13
+out_chg                 1
+suffix			autotest

tests/integrate/110_PW_SY_symmetry_12K/KPT

@@ -0,0 +1,4 @@
+K_POINTS
+0
+Gamma
+12 12 12 0 0 0

tests/integrate/110_PW_SY_symmetry_12K/README

@@ -0,0 +1,8 @@
+This test for:
+*C-diamond
+*k-points 12*12*12
+*old upf pseudopotential
+*smearing_method default
+*ks_solver cg
+*mixing_type plain
+*mixing_beta 0.7

tests/integrate/110_PW_SY_symmetry_12K/STRU

@@ -0,0 +1,18 @@
+ATOMIC_SPECIES
+C 12.000 C.pz-vbc.UPF
+
+LATTICE_CONSTANT
+6.1
+
+LATTICE_VECTORS
+-0.5 0.0 0.5
+ 0.0 0.5 0.5
+-0.5 0.5 0.0
+
+ATOMIC_POSITIONS
+Direct
+C	
+0.0
+2
+ 0.875  0.875  0.875 0 0 0
+ 0.125  0.125  0.125 0 0 0

tests/integrate/110_PW_SY_symmetry_12K/result.ref

@@ -0,0 +1,2 @@
+etotref -308.2811875307045
+etotperatomref -154.14059376535226

tests/integrate/CASES

@@ -58,6 +58,7 @@
 109_PW_CR_moveatoms
 110_PW_SY
 110_PW_SY_symmetry
+110_PW_SY_symmetry_12K
 111_PW_elec_add
 111_PW_elec_minus
 111_PW_S2_elec_add