optimize gitignore files

.gitignore

+
+install/
+
+host-tools
+host-tools/
+
+*~
+*.swp
+*.swo
+*.bak
+*.rej
+.DS_Store
+
+tags
+.tags*
+cscope.*
+ncscope.*
+.svim
+

freertos/.gitignore

@@ -4,3 +4,8 @@ cvitek/task/isp/isp
 cvitek/build/
 cvitek/install/bin
 cvitek/install/lib
+
+cvitek/install/lib/libaudio.a
+cvitek/install/lib/libcomm.a
+cvitek/install/lib/librgn.a
+

middleware/v2/.gitignore

@@ -5,6 +5,8 @@
 *.dep
 *.dwo
 
+ko
+
 lib
 bin
 include

middleware/v2/sample/ive/.gitignore

+sample_16bitto8bit
+sample_add
+sample_and
+sample_bernsen
+sample_bgmodel
+sample_cannyedge
+sample_cannyhysedge
+sample_csc
+sample_dilate
+sample_dma
+sample_erode
+sample_filter
+sample_filterandcsc
+sample_framediffmotion
+sample_gmm
+sample_gmm2
+sample_gradfg
+sample_hist
+sample_integ
+sample_lbp
+sample_magandang
+sample_map
+sample_ncc
+sample_normgrad
+sample_or
+sample_ordstatfilter
+sample_query
+sample_resize
+sample_sad
+sample_sobel
+sample_stcandicorner
+sample_sub
+sample_thresh
+sample_thresh_S16
+sample_thresh_U16
+sample_xor