librime for sbxlm v9.5.6

Commits

• 641a6ce: support e-lead buffered input (dsl)
• ea40a29: support reverse lookup of level 1-2 chars and words in sbfm, sbfx and sbsp (dsl)
• aa7ddbd: Merge remote-tracking branch 'upstream/master' (sbxlmdsl)
• d1bd840: support e-led buffered input to create long words (dsl)
• 547bfe8: fix bugs of buffered input in sbpy pop mode (dsl)
• 7292ea9: Merge remote-tracking branch 'upstream1/master' (dsl)
• 453b509: Merge remote-tracking branch 'upstream/master' (sbxlmdsl)
• 0bbaca0: remove fast_pop mode (dsl)
• bea6a06: Merge branch 'master' of sbxlmdsl:sbxlmdsl/librime (dsl)
• dd1652b: Merge remote-tracking branch 'upstream1/master' (dsl)