Port HeapLang tactics

[suhr]

Port remaining HeapLang tactics from Rocq Iris.

Tactics to take one or more pure program steps:

• wp_pure
• wp_pures
• wp_rec
• wp_lam
• wp_let
• wp_seq
• wp_proj
• wp_if_true
• wp_if_false
• wp_if
• wp_unop
• wp_binop
• wp_op
• wp_case
• wp_match
• wp_inj
• wp_pair
• wp_closure

Tactics for the heap:

• wp_alloc
• wp_load
• wp_store
• wp_cmpxchg_suc
• wp_cmpxchg_fail
• wp_cmpxchg
• wp_faa

Further tactics:

• wp_bind
• wp_apply
• wp_smart_apply

[kdvkrs]

Claiming the heap tactics.