Keyboard: Added split backspace layout for the b.mini (#4051)

keyboards/bmini/bmini.h

@@ -38,6 +38,24 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   { K07, K17,   K27, K37,   K47,   K57,   K67,   K77,   KC_NO, KC_NO, KA7,   KB7, KC7,   KD7,   KE7   } \
 }
 
+#define LAYOUT_splitbs( \
+  K05, K25, K35, K45, K55, K06, KA6, KA7, K07, KB5, KC5, KD5, KE5, KD1, KE1, KE2, \
+  K04, K14, K24, K34, K44, K54, K16, KB6, KB7, K17, KA4, KB4, KC4, KE4, KD4, KD0, \
+  K03, K13, K23, K33, K43, K53, K26, KC6, KC7, K27, KA3, KB3, KC3, KD3,      K67, \
+  K02, K12, K22, K32, K42, K52, K36, KD6, KD7, K37, KA2, KB2, KD2,           KE0, \
+  K01, K11, K21, K31, K41, K51, K46, KE6, KE7, K47, KA1, KB1,           K86, K77, \
+  K00, K10, K20,           K56,                     K57, KB0, KC0, K66, K76, K96  \
+){ \
+  { K00, K10,   K20, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KB0, KC0,   KD0,   KE0   }, \
+  { K01, K11,   K21, K31,   K41,   K51,   KC_NO, KC_NO, KC_NO, KC_NO, KA1,   KB1, KC_NO, KD1,   KE1   }, \
+  { K02, K12,   K22, K32,   K42,   K52,   KC_NO, KC_NO, KC_NO, KC_NO, KA2,   KB2, KC_NO, KD2,   KE2   }, \
+  { K03, K13,   K23, K33,   K43,   K53,   KC_NO, KC_NO, KC_NO, KC_NO, KA3,   KB3, KC3,   KD3,   KC_NO }, \
+  { K04, K14,   K24, K34,   K44,   K54,   KC_NO, KC_NO, KC_NO, KC_NO, KA4,   KB4, KC4,   KD4,   KE4   }, \
+  { K05, KC_NO, K25, K35,   K45,   K55,   KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KB5, KC5,   KD5,   KE5   }, \
+  { K06, K16,   K26, K36,   K46,   K56,   K66,   K76,   K86,   K96,   KA6,   KB6, KC6,   KD6,   KE6   }, \
+  { K07, K17,   K27, K37,   K47,   K57,   K67,   K77,   KC_NO, KC_NO, KA7,   KB7, KC7,   KD7,   KE7   } \
+}
+
 #define LAYOUT_kc( \
     K05, K25, K35, K45, K55, K06, KA6, KA7, K07, KB5, KC5, KD5, KE5, KD1, KE1, KE2, \
     K04, K14, K24, K34, K44, K54, K16, KB6, KB7, K17, KA4, KB4, KC4, KE4,      KD0, \